Repeater shotshell with a cxurious primer

yellow paper shotshell hstped : N

JP,
That primer is the New #4. It was introduced in 1903 as the No 4 1/2 primer for shotshells, and the name was changed to New No 4 in 1904. The No 4 1/2 will be marked in a similar manner (WRA Co No 4 1/2), and should be fairly uncommon, given it was produced for only 1 year. Your New No 4 primer is not uncommon.

thank you very much !
jp