IROOA

• Code name - IROOA - 12571
• Production era - 1959-19??
• Type - Hood for 35 & 50 mm lenses with E39 mount; black with wide chrome band;
• Variants - earliest engraved "Summicron-" without code word; later versions had "IROOA"; last with catalog number
• Reference - Page 106 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus.
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