aperture selector

ABDNP:200724a

Brass aperture selector and 2 brass rings. Aperture selector is basically a small cylinder with a circular disk, with 8 holes in it, offset on top.

1800

aperture selector: diam. 100mm, height 27mm, diam.s (apertures) 2- 17 mm
rings: diam. 160mm, height 17mm

metal

62e3cb13-956c-47f8-813d-457f72fe621a