1988 Revell 1:125 scale German U-Boat U-47 model kit with interior.

The Type VII U-boat was the most produced submarine class of
World War II, serving as the backbone of the German U-boat
fleet. These submarines were instrumental in the Battle of the
Atlantic, posing a significant threat to Allied shipping and naval
forces. Their design evolved throughout the war, with various
subtypes incorporating improvements in armament, range, and
operational capabilities.
Revell is a well-known manufacturer of plastic scale model kits,
founded in 1943. They have produced a wide range of model
kits, including military vehicles, aircraft, and ships. The U-47
model, particularly one with interior detail, is a popular subject
for model enthusiasts interested in World War II naval history.