My "E. Witte, Trier" features a leather-based strap plus a buckle that features a leather frame, not metallic. The Gottlieb Hammesfahr catalog reveals the leather-based strap and metallic buckle was used on their own Verlangerungsmesser sheath. The bolsters do not have the great grooves as demonstrated on another extravagant bolster https://felixjonlx.amoblog.com/best-bowie-knife-fundamentals-explained-49930739