SP 9715-9769
This group of GP60's was the first to be delivered in the newly adopted, Rio Grande inspired Speed Lettering scheme. They featured twin sealed beam headlights mounted between the number boards. Sadly, no SP or SSW GP60 ever carried gyralights.
SP 9715-9769 - 4-7/1991 - construction numbers: 907137-1 thru 907137-55