A cased optician’s trial lens set with lenses 12 plus‑power spherical lenses with dioptric tabs ranging in strength from 1.75-3.00, 6 for each eye and housed in a wooden case with padded inside lid with 'UK' marked for country of origin, dating from around 1950.
 
Also included is a nickel‑plated spring‑side trial frame with engraved degree scales.
The case measures 14.7 x 12.8cm.