New info from a Pennsy fan:
"The basic color for all standard PRR Steam Locomotives was DGLE (Dark
Green Locomotive Enamel) aka: Brunswick Green by railfans. DGLE was so
dark it appeared black. Black was applied to certain items (mostly
appliances like air tanks, pumps, bell frame, railings generator etc) on
the locomotives. In the early 1930's there were 10 locomotives directed
to be repainted Tuscan Red for service on premier trains in the east.
Only known numbers are 2761, 5409 and 5436. Of course no color
photographs exist of these locomotives. Neither do the orders of the
painting instructions so any guess of what was painted what color is
only that, a GUESS. All were repainted back to DGLE possibly several
years later."
So that suits me 'til I find out he was wrong!
regards,