RT Journet London Vintage Handheld "Geometrical" Dexterity Puzzle model plane propeller and I interpret the image

and I interpret the image as a woman's face in profile

widely varied stylistically and I think pretty interesting in a range of ways

This drawing is unsigned but I know dates to the late 19th century and was done by J

Each approx 2 1/2" t x 1" d and both in very good condition

RT Journet London Vintage Handheld "Geometrical" Dexterity Puzzle model plane propeller and I interpret the imageGreat graphics on this one, and I'm a sucker for geometrical shapes (I can never find geometrical solid blocks anymore, but this dexterity puzzle reminds me of them.) Produced by RT Journet London c. 1920s or so I believe. It's a challenge, but I do believe achievable! Perhaps just the right gift for one's favorite math teacher who needs distracting! 5" x 4 1 8" x 3 4". Good condition with light general wear and age.