Z SERIES 03A4

[Promo]

Duplicate serial numbers at Remington with A3 and A4 production - a 'Z' was added to the A4 duplicate numbers to differentiate with the A3 rifles allocated the same number

I think the Z prefix was added to both, at least I think I remember a board member here once posted a 03A3 from the "double block" with the Z prefix. Brophy even pictures rifle serial Z 4.000.000 which was presented to Col. Frank J. Atwood on 4th January 1944 with a plate inside the stock (SA Acc No 6312)