OUAGO

• Production era - 1959-19??
• Code number - 16467
• Type - Visoflex helical focusing mount for Elmar (II) f= 9 cm 1:4
• Range - Infinity to 3.25 feet
  • Plus one OTQNO = 2 feet
  • Plus two OTQNO = A little under 20 inches
• Source
  • Dennis Laney's Leica Accessory Guide (1st edition) pgs 49-50 courtesy of Mike Butkus
• Forum discussion
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