USS Maine , an armored cruiser , exclusively carried Driggs - Schroeder 6 - pounders .
USS Maine had a mixed one pounder battery of both Driggs - Schroeder and Hotchkiss .
USS Maine , an armored cruiser , exclusively carried Driggs - Schroeder 6 - pounders although it had a mixed one pounder battery of both Driggs - Schroeder and Hotchkiss .