Old Dog Tag Question

I have a set of old dog tags (pre 1964) which have the number T58
beginning the third line then a long blank space and the number or letter o. That's all there is in the third line. Can anybody tell me what this line means?

Tetanus shot in 58 and type O blood. Mine ( from 1953) reads T 53, O POS.

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Originally Posted by dave

Tetanus shot in 58 and type O blood. Mine ( from 1953) reads T 53, O POS.

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Thanks Dave.
I was pretty sure somebody on Jouster2 would know. There's a lot of expertise here

I looked at this thread thinking it was about "Dogtag" who posts on the second amendant forum. 8-/

Quote:

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Originally Posted by Major Tom

I looked at this thread thinking it was about "Dogtag" who posts on the second amendant forum. 8-/

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I thought the same. :icon_e_confused:

I know this is an old thread, but I collect old dog tags from WW1 and WW2 and it’s interesting how they’ve changed over the years.

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