Tank Locomotives up to Two Coupled Axles Tank Locomotives 0-4-0T “Four-coupled” Tank Locomotives 2-2-0T and 0-2-2T Tank Locomotives 0-4-2T “Olomana” Tank Locomotives 2-4-0T “Porter” Tank Locomotives 2-2-2T “Jenny Lind” Tank Locomotives 0-4-4T “Forney” Tank Locomotives 4-4-0T “American” Tank Locomotives 2-4-2T “Columbia” Tank Locomotives 4-2-2T and 4-2-4T Tank Locomotives 2-4-4T, 4-4-4T und 2-4-6T Tank Locomotives 4-4-2T “Atlantic”
