WW1 Royal Navy Submarine Service silver boat badge by Page Plymouth

A rare original First World War period 'Royal Navy miniature submarine boat pin brooch', the reverse impressed 'Sterling Silver' maker's details 'Page Plymouth' 'Rd.643143' a registered, design and patent date of 1915. Very good condition, complete with original pin fittings and vulnerable rear mask.
Width approx 50mm.

Code: 14356