Wooden box with 15 pieces of drawing instruments

[Wooden box with 15 pieces of drawing instruments]

Wooden box with 15 pieces of drawing instruments. In the Kangxi period of the Qing Dynasty, the box cover was 17 cm long and 7 cm wide. Made by the Qing Palace Building Office. The old collection of the Qing Palace
There are 15 pieces of drawing instruments in the wooden box set, including an ivory slide rule, 10 cm long and 1 cm wide; Folding square, 11.2 cm long; Drawing gauge, 10.1 cm long; Tortoise handle magnifying glass, 3.5 cm in diameter. There are also scissors and fire chain covers (a tool for making fire with cotton wool) suitable for field work.