MUSASHINO KOHKI : Rittreck SP
武蔵野光機:リトレック SP
A 6x9 SLR camera made by Musashino Kohki (Wista).
Vertical traveled focal plane shutter: B, 1/2, 1/4, 1/8, 1/1/20, 1/25, 1/100, 1/250, 1/500sec