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Case Tractors Discussion Forum
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Weird SN

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Nedd

06-14-2009 20:00:29




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Eaby Item 220434931847. It's a case C for sure but has seven digit SN that starts with 31*****.

So taking the first two and subtracting doesn't work for a C.

The guy has a close up picture of SN tag. Thought some of you might ponder on that for a while.




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Brian in Ohio

06-15-2009 09:40:49




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 Re: Weird SN in reply to Nedd, 06-14-2009 20:00:29  
OK, someone can correct me on this, but I thought I read on this board somewhere that there was one year where they had produced more tractors than the 6 digit serial number formula could handle, and they added a seventh digit just for that year for the overrun. It wasn't all that long ago that I read about it. If I can stumble onto the information, I'll post here again.

What is the complete serial number?

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Don L.

06-15-2009 05:19:25




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 Re: Weird SN in reply to Nedd, 06-14-2009 20:00:29  
First two subtract four works on all seven digit numbers till 1952. It has to one of the very first seven digit C's around. I thought 1938 was the first year of the seven numbers...........
Don L.



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Nedd

06-15-2009 12:07:38




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 Re: Weird SN in reply to Don L., 06-15-2009 05:19:25  
third party image

The comments say it is a 1937 case C. Actual sn is C3109278.



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caseman-d

06-14-2009 20:32:17




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 Re: Weird SN in reply to Nedd, 06-14-2009 20:00:29  
Hmmmmm, to bad it's so far away.

caseman-d



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Bob from Australia

06-15-2009 12:57:59




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 Re: Weird SN in reply to caseman-d, 06-14-2009 20:32:17  
I have posted on this previously. My father bought C3109577 new. I still have the tractor.

The serial number bothered me for a long time. I wrote to Case in the 1970s and was told it was a 1927 model. I thought wow I have a rare prototype, but it has many late model features. I knew that my father had not changed the tractor much, but one of his brothers was a good mechanic and had worked on it at times.

I then wrote to Dave Erb. He told me that in 1936 and 1937, Case made so many tractors that they had to use a 7 digit serial number, but to get the year you use the 6 digit formula.

Over the years I have run across several C tractors in Australia that fit this pattern.

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Nedd

06-15-2009 13:35:51




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 Re: Weird SN in reply to Bob from Australia, 06-15-2009 12:57:59  
So this would actually be a 1936 model if you follow the 6 digit code. 1st & 4th minus 3. Thanks for the response. Learning things all the time.



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Bob from Australia

06-15-2009 15:39:01




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 Re: Weird SN in reply to Nedd, 06-15-2009 13:35:51  
To the best of my knowledge, that is correct. First and 4th digit minus 3

I understand that my tractor is a 1936 build, though the best I can find from family knowledge it that the tractor was bought in 1937. Would have taken a few months to get it here. They were imported by Gamell Tractor Company of Sydney, then sold by agents (including my Uncle) throughout the state.

Dad died just after returning from service in WW2, so I was never able to quiz him about when he actually bought the tractor from my uncle

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