Montreur d’o??? et de nibs

Shay's notes

Replaced six pieces and one nub.
Have not been successful finding the artist monogram. Also not successful in finding/ reading the title of the puzzle.

Pieces in puzzle: 403
Size of puzzle: 17 h x 12 1/4 w
Cut date: c.1930s
Repair notes: 6 replacement pieces, one replaced nub
Description provided (if any) when acquired: