sm??

[farmallday]

Looked a a M on craiges list it is a SM what is the S??
 

[IaGary]

From 1952 thru 1953 or 54 Super M's were built. They made a few changes to the M and called it a Super M.

So the S stands for Super.

Gary
 

[farmallday]

so the super M is stamped SM on the searial tag?
 

[mkirsch]

The SM is silk-screened on the tag, not stamped, but basically, yes to your question.

A regular M will have FBK on the serial tag.
 

[Bob M]

A true Super M serial number will begin with either SM or L depending in which plant it was assembled (SM = Rockford; L = Louisville).

Bear in mind there are MANY regular M tractors around with Super M decals applied. Buyer beware!
 

[D Slater]

Letters SM will be near the top left corner looking at the serial tag the way you would read it on a super M. Serial number and its prefix and sufix letters will be on a different level than the SM or SMD if a diesel. If a S follows the serial number on the same level it may be a super MTA. LP tractors can also have letters.
 

[farmallday]

buyer beware is correct. But in this case it is oppasit. I beleave it has a SM serail # but regular M decals!!
 

[sflem849]

[Bob M]

Oops - I meant Rock Island! (Hadn't had my coffee yet when I typed that...)
 

[Fullers Farmalls]

Here is my Super M tag. Just to give a little view of what they look like with the SM on them.

 

[farmallday]

Thanks guys!!
 

[sflem849]