Proof housing & Sight layer for Cone, Chamber, Pressure Barrel

Object Title

Proof housing & Sight layer for Cone, Chamber, Pressure Barrel

Proof housing & Sight layer for Cone, Chamber, Pressure Barrel

Date

03/07/1934

Reference

ENF 7/3/3 DD(E) 1553

Level

item

Extent

1 drawing

Access Conditions

Open access

Reproduction Conditions

Crown Copyright