Someone more knowledgable than I can correct me if I am wrong, but, I do not think the 74025 number relates to where or when the bayonet was manufactured. My understanding is these numbers may simply be the serial number of the rifle to which the bayonet was mated.
Originally Posted by NeilE
Sometimes one can find a date of manufacture stamped above the Maker/arsenal stamp shown on the obverse of the ricasso pictured in my post above.
"Vertroue in God en die Mauser" --"Faith in God and the Mauser."
- Anglo-Boer War of 1899-1902