# 12"/40 caliber gun Mark III

> 1902 naval gun of the United States

**Wikidata**: [Q25345693](https://www.wikidata.org/wiki/Q25345693)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/12-inch/40-caliber_gun)  
**Source**: https://4ort.xyz/entity/12-40-caliber-gun-mark-iii