SOOPD

• Production era - 1949-19??
• Type - Collapsible hood for Summitar f= 5 cm 1:2 which serves as lens cap when folded per Forum discussion [1] below.
• Variants - Clamp-on with set-screw and clip-on (as shown) versions
• Reference - Page 108 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus.
• Forum discussion
  • JCB's a little...IIIb [1]
  • [2]