Aussy Model C, year model?

I own a C3109577 which is only 12 different from yours. My father bought this tractor new at Bingara, just west of Inverell. I have seen another C on the Darling Downs in Queensland that is only 2 different from mine. I imagine that all were part of the one consignment shipped to Australia and distributed through Gamwell Tractor Company in Sydney.

Dad died not long after coming out of the army at the end of WWII. None of my uncles remembered when the tractor was bought so I wrote to Case Public Relations in Racine in about 1970. They replied that the tractor was made in 1927 which was odd because production of the C started in 1929.

Finally I wrote to Dave Erb who told me that in 1936 and 1937 Case used 7 digit numbers for some tractors but followed the 6 digit serial number rule. For our tractors the first and fourth digits give 39, then subtract 3 to give 1936. From 1938 the 7 digit rule is used and the first two digits of the serial number is 42 or greater.

My email is r(fullstop)batterham(at)agec(fullstop)usyd(fullstop)edu(f
ullstop)au

I own a C3109577 which is only 12 different from yours. My father bought this tractor new at Bingara, just west of Inverell. I have seen another C on the Darling Downs in Queensland that is only 2 different from mine. I imagine that all were part of the one consignment shipped to Australia and distributed through Gamwell Tractor Company in Sydney.

Dad died not long after coming out of the army at the end of WWII. None of my uncles remembered when the tractor was bought so I wrote to Case Public Relations in Racine in about 1970. They replied that the tractor was made in 1927 which was odd because production of the C started in 1929.

Finally I wrote to Dave Erb who told me that in 1936 and 1937 Case used 7 digit numbers for some tractors but followed the 6 digit serial number rule. For our tractors the first and fourth digits give 39, then subtract 3 to give 1936. From 1938 the 7 digit rule is used and the first two digits of the serial number is 42 or greater.

My email is r(fullstop)batterham(at)agec(fullstop)usyd(fullstop)edu(f
ullstop)au

For more detailed information, see "Full Steam Ahead" pg 328.

Intrestingly, the later 37 models (numbers 10,000 and later) would read as a 37 using either formula..... Only the production sequence would be off using the 7 normal digit formula.

I have seen the <42/>42 x7 formula several different places, not just in "FSA". "FSA" is just usually my handiest reference point.

I agree that "FSA" has some errors, I've caught a few of them myself where the production numbers just don't add up. Most of what I've found appear to be just typos more than eroneous or supposition.