Attributed to Martin ENGELBRECHT (Augsburg, 1684 - 1756). Optical theater composed of a watercolor and cut engraving mounted under glass depicting a market scene illustrated by a succession of characters and stalls. The perspective leads to a group of characters contemplating a small street theater (accidents to the glass, restorations). 18th century. Height : 13,5 cm 13.5 cm - Width : 18 cm - Depth : 11.5 cm