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The lens is only known in an all-chrome rigid barrel. The focusing ring has a tab with infinity stop and is engraved in feet down to 3ft. The word JAPAN is engraved on the fixed part of the barrel, under the infinity stop. The aperture ring is graduated from 3.5 to 22, and depth-of-field indications are given for all apertures from 3.5 to 16.
The front rim is engraved Zeika Optco Tokyo ROJAR F=3.5cm 1:3.5 N°xxxxx. The only serial number confirmed so far is 56459; the two first digits might indicate that the lens was made in 1956.
The lens was also sold by the US distributor Sans & Streiffe as the Sans & Streiffe 3.5cm f/3.5. It is identical to the Zeika Rojar but for the engraving, reading Sans & Streiffe f=3.5cm 1:3.5 N°xxxxx. Two serial numbers are confirmed, also in the 564xx range.
- ↑ Lens offered for sale by a dealer.
- ↑ The numbers are 56405 and 56416, on lenses offered for sale by dealers.