The one in TW's SS book, attributed to the Barry Brown collection, appears to be be exactly like mine, including the "drop" configuration at the tip of the blade. The hilt is zinc-based. The stamped markings are somewhat deep and I have no doubt the blade was stamped before the blade was plated, not stamped after such. The SS portepee on mine has a cloth tag, dated 1935, which would coincide with the early issuance and wear of these bayonets.