Egyptian film posters have always been made by local printers who served other trades. I have found four Egyptian trade posters made of the same paper stock and size as most of the standard Egyptian one-sheet (27" x 39") film posters, two of them commissioned by workers in the film industry.
The first was commissioned by attorney and writer Adly El-Mowalid:
It is not clear to me if this poster was intended to promote his
business as an attorney, as a writer, or both. There is no
mention of his work in film on the poster, but his name appears there exactly as it is always shown on film posters that credit him for writing: "Adly El-Mowalid, the Attorney."
The poster was printed by al-Nasr printers, with art by Wahib Fahmy. Both of them worked on many film posters.
Here are some posters for films for which Adly El-Mowalid is credited as a writer: