North
As stated above by
@YoungGun87
You can thank
@Thrashingcows
RM21...I think that is what it says...so a 68 Roadrunner 2dr sedan coupe
62 = 383/4bbl
5 = Auto 727 transmission
44 = F70 x14 redline tires
530 = Scheduled production date of May 30th, 1968
368066 = shipping order number
These 1-8 moulding codes can sometimes be a little confusing and offer more then one option, so will put down what it most likely would be.
2/5 = 542 - door edge moulding
4/7 = 537 - RH outside remote mirror, or 547 - B-pillar moulding
AX/48 = A/4 = 404 - 3.23 gear ration, X/8 = 408 -Sure grip
TRM/H4R = T/H = High trim line, R/4 = Split vinyl bench seat, M/R = red interior colour
RR1 = Burgandy Metallic paint colour for the car.
UBS/Rxx = U/R = upper door paint in red
And it does not appear there are any other options in the rest of the tag.