Three months—mid-July to mid-October 1941—elapsed between the commissioning of the last of the original 24 ships, Ingraham, and the first repeat ship, Bristol. The two differened little in

Ellyson, the second Bristol, as completed.

appearance—both carried a crow’s nest on the mast, 0.50 cal. machine guns as anti-aircraft armament, and ten torpedo tubes and a searchlight mounted on a high superstructure aft, carryovers from the original design. But Bristol completed with only four 5-inch guns.
   Soon, however, armament for most ships standardized on five tubes and four guns, while a 1.1-inch cannon and one 20mm Oerlikon aft as 20mm single mounts replaced the 0.50 cal. machine guns (see top).