This is a original vintage 1939 Great Britain cargo lantern # 3954. It is made of brass with 3/16 thick glass on all 4 sides. It has been converted into electric and has a touch sensor to turn on and off, with 4 different brightness settings.
Measures about 16" inches tall, 6 1/2"X 6 1/2 inches wide. It is in excellent working condition minus some patina on the brass. Please view images for further details.