Lunken Spotter:
Two Cannons, One Post
Lunken Spotter:
Two Cannons, One Post
Lunken Spotter:
Shoulder rest
Lunken Spotter:
Trail Wheel
Lunken Spotter:
Breech, rear view
Lunken Spotter:
Tube stamp
Lunken Spotter:
57mm Gun M1 No.5632 in Columbus
Lunken Spotter:
57mm Gun M1 No.5632 in Columbus
Lunken Spotter:
57mm Gun M1 No.5632 in Columbus
Lunken Spotter:
Front view
Lunken Spotter:
Shoulder rest
Lunken Spotter:
Breech area, left side
Lunken Spotter:
Under breech
Lunken Spotter:
Trail wheel
Lunken Spotter:
Breech
Lunken Spotter:
Carriage dataplate
Lunken Spotter:
Breechblock stamp
Lunken Spotter:
Tube stamp
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
Plugged barrel
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
57mm Gun M1 No.5640 in Columbus
Lunken Spotter:
Two Cannons, One Post
Lunken Spotter:
Trail
Lunken Spotter:
Breech, Right Side
Lunken Spotter:
Recoil mechanism
