Gani started before the war - card 1025 (a photo of the Pantheon) was posted in 1937. At this time the address was as given above and appears in the horseshoe on some cards.
Many cards are illustrations from the 40's and 50's.
At some point the logo became Gany, at first still written inside the horseshoe and then just as the word on the face of the card, in the same script. CParama gives the address as Editions Gany 29 Boulevard St-Martin Paris.
