ANTIQUE TROUGHTON & SIMMS SURVEYOR'S POCKET COMPASS, PRISMATIC, HAND BEARING
In 1826 Edward Troughton took on William Simms as partner. ANTIQUE TROUGHTON & SIMMS - LONDON, SURVEYOR'S / ENGINEER'S POCKET COMPASS, PRISMATIC, HAND BEARING. Dry card, with lock. Brass case.