Probably only 10 to 15 years after Parker Brothers started selling Monopoly games in 1935 in America, the first Portugese editions appeared.
The properties on the Parker Brothers game boards as from 1961 sometimes majorly differ (like stations instead of cinema's) and sometimes only in minor detail (different spelling of street names) from that of the original issues of the same maker.
The properties of the Portuguese Monopoly editions are not only from the capital Lisbon, but are mainly based on streets from Lisbon, followed by a number from Porto and a few streets from 3 other cities.

The spaces on the game boards as from 1961 are from Partida:
Campo Grande (Lisboa) - Caixa da Comunidade - Av.Fernão de Magalhães (Porto) - Pague imposto sobre a renda - Estação do Rossio - Avenida Almirante Reis (Lisboa) - Sorte - Avenida Todi (Setúbal)  - Av. 24 de Julho (Lisboa) - Cadeia (2x) - Avenida dos Combatentes (Braga) - Companhia Electricidade - Rua Ferreira Borges (Coimbra) - Av. de Roma (Lisboa) - Estação de  Campanhã - Avenida da Boavista (Porto) - Caixa da Comunidade - Avenida da República (Lisboa) - Rua de SÁ da Bandeira (Porto) - Estacionamento Livre - Rua de Santa Catarina (Porto) - Sorte - Rua do Carmo (Lisboa) - Av.Marechal Gomes da Costa (Porto) - Estação de S.Bento - Rua de Santo António (Porto) -  RuaGarrett (Lisboa) - Companhia das Águas - Avenida dos Aliados (Porto) - Vá para a Cadeia - Avenida da Liberdade (Lisboa) - Praça da Liberdade (Porto) - Caixa da Comunidade - Rua do Ouro (Lisboa) - Estação de S.ta Apolónia - Sorte - Rua Augusta (Lisboa) - Taxa  de Luxo and Rossio (Lisboa).

Edition: Monopólio
Publisher: Majora - Porto - ± 1950
Dimensions of the box: 25 x 49.5 cm
The game:
A collector from Portugal pointed this old, not Parker Brothers Monopoly issue out to me. 
He tells about this edition:

"My mother got this set as a child, the reason why I assume this set dates back to about 1950.
It must have been one of the first Portugese Monopoly editions. Even today the existing manufacturer could not tell when they started issuing this game. However Marjora decided  to translate the original American name, because under the then ruling dictator (until 1974) import of products was forbidden and in case products were important they should be sold under Portugese name. 
As Parker Brothers found out Majora brought the games on this way on the market they were forced to stop and use the original name."

At close comparison of the Parker Brothers version as from 1961 with this inland variant it shows that:

As from Partida the properties and other fields of this oldest known edition are successively:
Campo Grande (Lisboa) - Tire o seu Azar - Av.dos Combatentes (Porto) - Pague imposto  sobre a renda - S.Luís Cine - Av. Almirante Reis (Lisboa) - Tire a sua Sorte - Av. Todi (Setúbal)  - Av. 24 de Julho (Lisboa) - Cadeia (1x) - Av. dos Combatentes (Braga) - Companhia Electricidade - Rua Ferreira Borges (Coimbra) - Pague Imposto Predial - S.Joáo Cine - Av. da Boavista (Porto) - Tire a sua Sorte - Av.República (Lisboa) - R. SÁ da Bandeira (Porto) - Estacionamento Livre - R.Sta. Catarina (Porto) - Tire o seu Azar - Rua do Carmo (Lisboa) - Companhia das Águas - Cinema Tivoli - R.Sto.António (Porto) -R.Garrett (Lisboa) - Tire a sua Sorte - Av. dos Aliados (Porto) - Vá para a Cadeia - Av. da Liberdade (Lisboa) - Pr.da Liberdade (Porto) - Companhia do Gaz - R.do Ouro (Lisboa) - Coliseu - Tire a sua Sorte - R.Augusta (Lisboa) - Pague Imposto de Conservaçáo de saneamento and Rossio (Lisboa).

Apparently until the sixties it was common usage to always have something different at the yellow streets. So they waggled with the amounts of the first and third street. The board shows a value of 2600$ at R. Sto. Antonio, while its property deed shows a mortage value of 1400$ (Escudos). In reverse the board has a price of 2800$ at Av. dos Aliados, while its mortage value is 1300$.  And here again the  rent of all unimproved. 
The banknotes are of the manufacturer's own design and so differ completely from the "official". In the large central circle of the note it always says above the number in red "Monopólio Registado" and under it "Majora". Outside this circle there are another 4 smaller circles showing the denomination. The denominations of the 7 banknotes are resp.: 10$ - 50$ - 100$ - 200$ - 500$ - 1000$ and 5000$.
Unfortunately there are no tokens, houses nor hotels anymore. However, it is known that they were of wood.

Edition: Monopoly, standard long box,  Ref. 492
              Jogo de Sociedade
              Licença Parker Brothers Inc. U.S.A.
              Fabrico Exclusivo de Majora - Porto
Publisher: Parker Brothers, Inc./Majora - Porto -  ±1961
Dimensions of the box: 26.2 x 48.0 cm
Dim.of the double folded board: 66.8 x 66.8 cm
The game:
This white box with a picture of the gameboard in a green and blue field and Monopoly in white characters in a red bar is typical for the sixties and seventies. Moreover is under the red bar the logo exsisting of a "drawn Uncle Pennybags in a red square with a blue engine on each side". 

Like in other European countries these Portugese editions  clearly have the features of the Parker Brothers design, i.e.:

However, there are remarkable differences compared to the same editions from other countries, viz.:

The white back of the game board has a pattern of the maker's name in blue characters. In the innerbox are 2 inserts of soft cream colored plastic. One contains 7 spaces for the banker's banknotes, the other has 8 holes for the storage of the attributes. The is nothing printed at the bottom of the box.
Like in the issues of other countries here the rent of all unimproved.  Both blue Sorte- and pink Caixa da Comunidade cards have a pattern of the word Monopoly printed on both sides.
The tokens are 6 simple plastic pawns. Both dice are white with black pips.

The price of this set amounted to US$ 11.- in September 1987.

This edition was "Made in Portugal"

Edition: Monopoly, reduced long box, Ref. 492/1
              Jogo de Sociedade
              Licença Parker Brothers Inc. U.S.A.
              Fabrico Exclusivo de Majora - Porto
Publisher: Parker Brothers, Inc./Majora - Porto - ±1961
Dimensions of the box: 22.0 x 42.0 cm
Dim.of the double folded board: 41 x 41 cm
The game:
This edition is almost exactly equal to the one with Ref.492, except for the fact that it is slightly smaller. Also this smaller edition cannot be compared with the square box in which the gameboard is folded twice. That is because of this edition the board is 41 x 41 cm, whereas that of the large edition is 66.8 x 66.8 cm.
The board has remarkable broad white edges. It's back is green  with a pattern of the name Majora.

In the innerbox is an insert of blue plastic with 9 holes for the attributes.  The bottom of the box is unprinted. 
Again the houses are red and the hotels green.  The 6 colored, plastic tokens are hollw cilinders with rounded top.
Both dice are of wood and green with gold pips.

This edition was "Made in Portugal".

Edition: Monopoly, square box, Ref. 492/2
             Jogo de Sociedade
              Licença Parker Brothers Inc. U.S.A.
              Fabrico Exclusivo de Majora - Porto
Publisher: Parker Brothers, Inc./Majora - Porto -  ca.1970
Dimensions of the box: 25.0 x 25.0 cm
Dim.of the double folded board: 46.7 x 40.7 cm
The game:
Note that all 3 games have different sizes.
Oddly enough, this is the only game of these 3 where the copyright line is mentioned under the red Monopoly bar of the lid.

This edition of the "white box doos with the board in a green, in blue field" and the red Monopolybar about in the middle of
 the lid has been published over more than 10 years in many countries and in various sizes.

All accessories in this edition are exactly the same as those of the earlier publications, like: 
the numbered property deeds, the Sorte and Caixa da Comunidade cards, the small banknotes of the Banco Monopoly, 
the little red houses and large green hotels.
Te 6 tokens are lttle plastic pawns with wide base.
The dice are of black wood with gold pips.

The rent of the most expensive yellow street in unbuild state, the R.de Santo António in Porto, is still that of the other 2 streets. 
This is already since the creation of the game in America, see chapter http://www.muurkrant.nl/monopoly/usa-classic-editions.htm.

This game was "Made in Portugal"

	The illustration on the lid shows a somewhat cheap looking roodbruine rim.
	Only 4 spaces of the fourth side of the game board are shown in perspective with 1 house, 1 hotel, still the hat and the racecar as well as both dice, however  now with 4 and 3 (instead of 3 and 5, as on previous wite boxes with ref.nr.14535 from the second of the fifties).
	The prices of the properties are in Euro as well as in low values startin with € 60 and finishing with  €400 for the most expensive street.
	The perspective red Monopoly bar with the nice shadow and Mr.Monopoly with the red bow tie (until 2000 he was Rich Uncle Pennybags), that appears on the lid, the board game's midfield and all 4 rims of the innerbox.
	The bottom side of the box no longer shows "the laughing family" but almost the whole game board with all its attrubutes.