From photographs of particular guns on the vessels in question .
It appears that the battleships USS Indiana , USS Oregon , and USS Iowa carried exclusively Hotchkiss 6 - pounders with USS Massachusetts carrying Driggs - Schroeders .
Although from photographs of particular guns on the vessels in question , it appears that the battleships USS Indiana , USS Oregon , and USS Iowa carried exclusively Hotchkiss 6 - pounders with USS Massachusetts carrying Driggs - Schroeders .