EUC Antique 1950s Japanese Himitsu Bako Marquetry System Puzzle Box ~ Hidden Key

Excellent Vintage 1950s Handmade Inlaid Mt. Fuji Japanese Puzzle Box, Himitsu-Bako or secret box with hidden keyhole & key ~ Marquetry System
Fake book presentation on the side, beautiful Inlaid Nature Scene from Japan on the top
Original paper & string & key multiple steps to unlock & uncover key / keyhole & hidden compartment underneath
Never used condition & condition of wood is not weathered ~ 2 small brush chips on the sides that are not noticeable but pictured & expected due to age
Craftsmanship: Handmade using traditional techniques passed down through generations.
Materials: Various shades of wood to create intricate geometric designs. The technique is called Yosegi-Zaiku, a mosaic woodwork.
Mechanism: Requires a series of sequential adjustments to open.
Approximate Measurements: 3" tall, 3.25 deep total, 4.25" wide total, Interior: depth of box: 1.75", 3.75" width of inside, 2.3" deep inside
Purchased at an upscale estate sale
Please inspect photos carefully and ask ?s