SD45 SLSF 925 SD45 SLSF 925 - BN 6674 1) SD45 SLSF 925 Thayer, MO. 12/30/1977 2) SD45 SLSF 925 - BN 6674 Stored at Springfield, MO. 7/1/1984 3) SD45 SLSF 925 - BN 6674 Stored at Springfield, MO. 12/29/1985.