mrcvs said

Here’s the search.  It seems that W R A only came out in 1929 so W R A Co is 1928 and before.

https://forum.cartridgecollectors.org/t/wra-vs-wra-co/15580

I did not notice any difference in the headstamp of the 5 cartridges of the 39 that I photographed, only that the one that contains the spent primer is shinier than the rest.  They were randomly selected out of the 39.  

Thanks for the site.  I was thrown off by the huge hit on the primer.  Like I said before the early WRACO head stamps came in 3 variations but I really can’t see the difference in Shuey’s book.