I agree, have a hard time understanding all the differences between all the models that NH produce. Seems they always have a new model out with different letters of the alphabet & numbers thrown in the mix! lol

 All I know, and even though this is kinda funny, it's actually suppose to be real... maybe someone else can confirm, but it makes sense...

TJ - TRACTOR JUMBO

TG - TRACTOR GIANT

TV - TRACTOR VERSATILE

TM - TRACTOR MEDIUM

TL - TRACTOR LITTLE

TS - TRACTOR SMALL

TC - TRACTOR COMPACT

BB - BIG BALER

BR - BALER ROUND

CR - COMBINE ROTARY

CX - COMBINE ??? should maybe renamed CC : COMBINE CYLINDER/CONVENTIONAL

HW - _________ WINDROWER - need some help on this one!

HS - HAYBINE SICKLE

edit: I just checked out NH site & I see that they have scrapped some of the lettering, I guess no more TJ or TG's just T 9000 & T8000 series. Dang, just when I was starting to understand all that gibrish! lol