Signed AM tabletop dome architectural model in walnut with two curving stairs rise to a landing, from which a third straight stair case rises; semi-circular columns and arches support the dome. Possibly French and mid century. Hallmarked on verso AM. Height: 16 in (40.64 cm), Width: 18 in (45.72 cm), Depth: 10 in (25.4 cm) AM tabletop Model dome with stairs, Corinthian walnut wood column temple, tabletop decor and accessories, neoclassical Home accents, wood Demi dome , architectural feature, Wooden Architectural Staircase Model, Home decor and accessories, French collectible model staircase dome, Models & Prototypes 3 B One of a group of staircase models, many of which are masterworks from a guild-like system of design instruction and apprenticeship called Compagnonnage. This model is exceptional in its execution; dovetail and openwork. France.