A 6x6 cm medium format folder camera from 1941.
I got is pretty cheap at an auction, most likely because the seller tagged it as "Lover Six" ... hahaha ... and nobody found it ;-))
jazztrio2014, wuxiong, adash, djramsay, shoujoai, marcel2cv, ridzuanrahman & ankos.
Good job it's not a 6x9 because I don't want to know what the auctioner might have ended calling it then! ;-)
Hahaha ... never thought about that ;-))