Clayton- As far as I am aware there are only T213-1 thru T213-3. I guess you could have the overprinted T213-3 be a type 4 but that would be making something up. Burdick's ACC only has T213 and goes on to say there are 2 types. Over time we have put the -1,-2,-3 onto them but Burdick didn't differentiate with any hyphenated numbers. Hope this helps.
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Leon Luckey
Last edited by Leon; 10-29-2012 at 07:38 AM.
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