Detachable viewfinder

Detachable folding viewfinder, with cross-hairs on glass. Kodak maker?

Details

Category:
Photographic Technology
Object Number:
2010-5057/54
Materials:
white metal (unknown) and glass
Measurements:
overall (deployed): 27 mm x 32 mm x 32 mm,
type:
viewfinder
credit:
National Media Museum, Bradford