Thank you for all of you/for your answers! There isn't anything pressed on the leather (lid) (Old-N-Feeble, summicron1), and yes the focusing panel was with this camera (Old-N-Feeble).

I found something interesting/similar (to my camera) on Camerapedia: First_plate_folders,"The First or First Camera Japanese 6.59cm plate folders, distributed by Minagawa in the late 1920s and early 1930s, and ostensibly made by "First Camera Works", another name for Kuribayashi". What do you think?!

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regards, zoli (sorry for my horrible hungarian english)