Athearn HO ATH SD39 Locomotive, ATSF #4012

Introduced following an FRA study into grade crossing visibility, the ATSF Freight Bonnet scheme was introduced in 1972. All 20 of the road’s SD39s were eventually repainted into this scheme. Earlier repaints, as depicted by our models, retained their low-mounted horns, and were not yet fitted with cab A/C.