What is the build date locomotive total produced less than 45 and a fb-2 model?
Model Specification Build date Total produced Wheel arrangement Prime mover Power output
List of MLW diesel locomotives
1257252
text text text real text text text
2-1257252-2
Cab units (FA  &  FP series)
Cab units (FA  &  FP series)
FA-1 DL-208A, DL-208B 1949-1950 28 B-B 12-244B hp (MW)
FB-1 DL-209A, DL-209B 1949-1950 20 B-B 12-244B hp (MW)
FA-2 DL-212, DL-212A 1951–1953 45 B-B 12-244 hp (MW)
FB-2 DL-213, DL-213A 1951–1953 21 B-B 12-244 hp (MW)
FPA-2 DL-212, DL-212A 1953–1955 19 B-B 12-244D hp (MW)
FPB-2 DL-213, DL-213A 1953–1955 14 B-B 12-244D hp (MW) hp
FPA-4 DL-218 1958–1959 34 B-B 12-251B hp (MW)
FPB-4 DL-219 1958–1959 12 B-B 12-251B hp (MW)
SELECT Build date FROM table WHERE Total produced < 45 AND Model = fb-2
45 fb-2