IUFOO

• Introduced - 1956
• Code name - IUFOO 12575
• Type - Lens hood for Elmar f= 13.5 cm 1:4.5, 135mm f/4 Tele-Elmar Hektor f= 13.5 cm 1:4.5, Elmarit f= 9 cm 1:2.8, Elmar (III) 1:4 / 90mm and 90mm f/2.8 Elmarit-M with double trigger fastening.
• Variants Early version has a narrow chrome band with the black portion inscribed "Elmar 9cm, Hektor 13.5cm".
• Reference - Page 108 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus.