US version of the British 6-pounder. Getting hard to make sure photos are not posted already - hope this isn't a duplicate.

US M1 57mm ATG

16-inch coast artillery gun, Ft. Story, Va.; 1942, March; LC-USW361-9

Coast Artillery Gun

A 75mm M1897 M2A2 howitzer. A copy of the famous Mle 1897 "French 75," mounted on an improved carriage. The towed gun was used in the early Pacific Campaigns, but was or was becoming obsolete. For Africa and Europe, most of the guns were converted into gun motor carriages, such as the M3 GMC.