A bonus option on the sheet is the T-38A from 509BW, featuring the unit's historic "circle R" marking on its tail.
This set was designed to work on both Wolfpack and Trumpeter T-38A/C kits.
The options on this decal set are:

T-38C 64-3197, USAF Test Pilot School (TPS)
T-38C 61-4856, US Navy Test Pilot School (USNTPS)
T-38A 67-14845, 509BW heritage jet
Accurate stenciling and national insignia to build any one of the options is included. This decal sheet was professionally screen printed by Cartograf in Italy
.