Untitled-Working Dogs

c1920's non-interlocking plywood jigsaw puzzle which features a fine canine study by the prolific British-born artist Norah Drummond (1862-1949).
The box label is missing from this example, so actual title/breed uncertain.
The puzzle includes 16 Whimsies, or figural shaped pieces.

Artist: Drummond, Norah
Date: c1920's
Brand: Tuck, Raphael and Son's Ltd
Material: Plywood
Nationality: British-England
Pieces: 100
Range: Zag-Zaw
Size: 7 1/4" x 10"
Theme: Dogs
Title: Untitled-Working Dogs