Admiralty Pattern Rolling Rule 27 in ER Watts

Highly polished boxed Admiralty pattern rolling rule 27in made by ER Watts London, Ottawa & Winnipeg.

Beautifully presented , in original box with the stencilling of the H.O ^13.

Also engraved into the rule, along with makers name.

ER Watts produced many directional aides for the MoD for many years.

Dimensions 

Box 28.25 x 4.4 x 2.25in

Box Weight 4kg