This is a rare and original promotional speed poster for the 1973 film Mamushi no Kyōdai: Keimusho Gurashi Yon Nen Han (The Snakes' Brothers: Four and a Half Years in Prison), directed by Kōsaku Yamashita and starring Bunta Sugawara. The poster is part of the Speed Poster Series, featuring a compact format.
Measuring approximately 72 cm x 25.5 cm (half the size of a standard B2 poster), this vintage promotional piece is an excellent collectible for fans of Japanese cinema and Sugawara's iconic roles.
