H.M.S. Narwhal

60-piece fully interlocking plywood jigsaw puzzle by Victory, featuring the "new British Submarine H.M.S. Narwhal". The ship was a "Grampus-class mine-laying submarine, launched on the 29th August 1935 and lost in the North Sea on 23rd July 1940.
The puzzle is understood to date from 1938.

Artist: Unsigned
Date: c1938
Brand: Victory
Material: Plywood
Nationality: British-England
Number: W.N.7.
Pieces: 60
Size: 5 1/2" x 7"
Theme: Maritime
Title: H.M.S. Narwhal