Details
TOKYO OPTICAL CO., Japan
A 14 x 14mm. Tone camera with black leather-covered and chrome body, top-plate with waistlevel finder, stamped Tone. Pat., Toko and winding knob, back-plate stamped Made in Occupied Japan, direct vision finder, shutter marked 25, 50, 100, B and a helically focusing Tone anastigmat f/3.5 25mm. lens with aperture scale 3.5, 4.5, 6.3, 5, 11.
A 14 x 14mm. Tone camera with black leather-covered and chrome body, top-plate with waistlevel finder, stamped Tone. Pat., Toko and winding knob, back-plate stamped Made in Occupied Japan, direct vision finder, shutter marked 25, 50, 100, B and a helically focusing Tone anastigmat f/3.5 25mm. lens with aperture scale 3.5, 4.5, 6.3, 5, 11.
Literature
Sugiyama (et.al), The collectors guide to Japanese cameras, p. 291 no. 5148.