GP50 3100 at Cicero, Illinois in December 1980 (Vernon Ryder).
The Frisco ordered nine GP50s. All went to service with BN and were delivered shortly after the merger. #3100 (SLSF #791) was delivered in Orange and White, but with the BN numbers in Orange with no BN lettering. The rest 3101-3109 (SLSF #790 and #792-799) were delivered in BN paint.