Soviet K-1 Artillery Quadrant with Wooden Case and Certificate

Mechanical K-1 artillery quadrant (Квадрант К-1), described as Soviet-made. According to the seller, it is complete in its original wooden transport case with a paper inspection certificate (Attestat).

- Model: K-1
- The certificate lists serial number 7520 and a handwritten date of 25-10; the year is not stated.
- According to the seller, the instrument came from a business in working condition; the bubble vial works and all moving parts turn smoothly.
- The scale and markings are in Cyrillic.
- Dimensions: 23 × 21 × 6 cm, according to the supplied information.
- Weight of the complete set: 4,250 g.
- The seller describes the instrument as being in very good condition; the green transport case shows visible paint wear.

Measuring accuracy and calibration have not been independently checked. Shipping with tracking is charged separately.