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History of Science Museum

Brass Screw Cap with Envelope

Inventory Number 11180


Item type
Object
Physical material
copper alloy
Paper
Inventory No
11180

Description

Copper alloy screw cap. Has a flat, circular top featuring two engraved circles on either side. Over the top of engravings is a hatching in a cross design. Extending from circular top is a cylindrical screw thread mount for a screw.

A brown envelope which features the letters 'AXT' handwritten in ink.