Zeiss/German Medium Format Plate Holders Lot of Three

Lot of three medium format plate holders. One is marked Zeiss Ikon,

 the other two have no markings.

Zeiss Ikon Wood Plate Holder: Width 82mm. Height from bottom to top 149mm. Inside 61mm x 83mm. Spring clips and locking end. Metal dark slides. CONDITION: rough.

Aluminum/Wood Plate Holder. Marked #5/6: Width 83mm. Height from bottom to top 134mm. Inside 61mm x 80mm. Spring clips and locking end. Metal dark slides. CONDITION: Used, minor rust to spring clips, age related wear.

Black Plate Holder. Marked 3 and 4. Width 81.5mm. Height from bottom to top 123mm. Inside 61mm x 82mm. Spring clip and locking end. Metal dark slides. CONDITION: Used, age related wear.