Brass-Mounted Rectigraph Symmetrical Lens

Made:
circa 1885 in Birmingham
maker:
J Lancaster and Son
Brass-Mounted Rectigraph Symmetrical Lens

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Brass mounted Rectigraph symmetrical lens F.8 11 inch f.l fitted with patent ring-type of diaphragm with engraved exposure table. Lancaster c.1885.

Details

Category:
Photographic Technology
Collection:
Arthur Frank Collection
Object Number:
1979-559/1189
Materials:
brass (copper, zinc alloy) and glass
Measurements:
overall: 86 mm 62 mm,
type:
symmetrical lens
credit:
The Arthur Frank Collection