My guess is that its a 1961 Farmall 140. Here is an email I received from tclay:
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"On the tractor on the right hand side are the numbers 357657R5 OR R6.
I found a book, but do not know if it is the book for this tractor? It has Serial number 14442J. Del. May 19th. 1962 written on the first page.
HELP thanks"
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357657R5 I think is the part number for the C-123 block. The serial number above falls into the range for a 1961 140.
So - tclay - is it an offset tractor? With engine to the left and driver's seat to the right? The book you found ... what kind of tractor does the book say? Is there a plate on the left side of the tractor on the clutch housing (I think that's where they are on 140s) with a number matching the serial number on the book?
Does it look anything like this (picture nicked from David Bennett)?