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TitleMakerDate Made
Fernrohrbrille Aufsteckglas lensZeissMid-late 20th c.View
Fernrohrbrille Aufsteckglas lensesZeissMid-late 20th c.View
Monocular auxiliary lensMid 20th c.View
Press-On Optics by OSG: -7.00 DioptresOptical Sciences Group, Inc.c.1972View
Press-On Optics by OSG: 20 Prism DioptresOptical Sciences Group, Inc.c.1972View

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