Similar to 呂号第六十八潜水艦

Japanese submarine Ro-35

Japanese submarine Ro-36

Japanese submarine Ro-38

Japanese submarine Ro-39

Japanese submarine Ro-40

Japanese submarine Ro-41

Japanese submarine Ro-43

Japanese submarine Ro-47

Japanese submarine Ro-48

Kaiyō No.1-class oceanographic research ship

Type 202 submarine

British C-class submarine

HMS E1

HMS E8

HNLMS O 20

P-class cruiser