WWII metal eyeglass case from USS Trigger

WWII metal eyeglass case. Estate find. Sticker says "From WWII belonged to military person on USS Trigger". USS Trigger (237) was a Gato-class submarine sunk March 28, 1945. Responsible for sinking 27 ships. Measures 6"w x 2 3/8" h x 7/8" d. Navy blue paint and felt lining. See pics for condition. Opens/closes well and latches tight.