Negretti & Zambra WD Broad Arrow Folding Artillery Rule Boxwood Spirit Level
USD 400.50 USD
Specifications
| Antique | Yes |
| Type | Rule, Level & Quadrant |
| Period | 1800 to 1900 |
| Material | Boxwood and Brass |
| Country Of Origin | United Kingdom |
Maker marked"NEGRETTI & ZAMBRA, VIADUCT, LONDON". Artillery calibre references including: 3 Pr, 12 Pr R, 6 Pr, 12 Pr, 40 Pr R, 18 Pr, 24 Pr, 8 In, 68 Pr, 9 In, 10 In. Engraved Artillery Data. Artillery angular subtension reference.
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