MONTAUK IIA , GENNERT, USA,
UNICUM shutter, B&L lens,
dark maroon bellows, 4X5 size.
A typical camera of the 1900's:
'cycle' style. 3 wooden plates inserted via the side door.
A back door
opens to use the back-glass for direct-focus OR just look thrugh the view-finder.
To focus: turn the focus-knob and the bellows with the lens-board moves
on the rails.