American WW2 era FOSTER BROS fighting knife, 22.5″ Paton sword blade “OSS Drop Knuckle Knife” RARE

$649.99 $449.99

Huge WW2 era Knuckle Knife made from M1913 Patton Sword by FOSTER BROS-known as “OSS Drop Knife” RARE

1 in stock


Very rare WW-2 era so-called “OSS Drop Knife” knuckle-duster fighting knife with extra-long 22-1/2″ blade made from the WW-1 era M1913 Calvary saber – aka “the Patton Sword”. These were reportedly made by FOSTER BROTHERS under contract for the US military using whatever old bayonets and sabers Uncle Sam could find in the arsenal storages. Forced to improvise during the wartime shortage of quality materials, Foster Bros had reserved to using cut-up garden hoses as the handle material. Interestingly, in spite of its common name there is no evidence supporting the claims that these knives were actually air-dropped to or by the OSS operatives during the War. Although this particular “drop knife” was probably not best suited for clandestine operations or concealed carry, the fearsome look would definitely make-up for the shortcomings in its not-so-practical design 😉

This type is illustrated on page 172 of the U.S. MILITARY KNIVES; BOOK IV published in 1973 by M. H. Cole, and on page 175 of the KNIVES OF THE UNITED STATES MILITARY WORLD WAR II book by Michael W Silvey – a well-established expert and the author of a number of books on the subject of the US military edged weapons (see the book’s scans attached). This rare knife has not been cleaned or tampered with in any way, 100% original condition; these are the actual photos; spent brass is not included with the lot. Please check out Militaria section for another rare WW2 “OSS Drop Knife” we offer for sale.

The knife appears to be unused; straight saber-point blade is about 22-1/2” / 57.2 cm long; about 26-3/4” / 68 cm overall. Fullered dual-edge blade is excellent, the tip is intact. The blade has retained most its original satin-polish finish with some light surface rust here and there (cleanable). Four-point steel knuckle “D-guard” over rubber hose handle; the guard is free of contact marks and dings. The handle is in great overall condition; all parts are tight with no play. A rare find these days – today most of the surviving WW-2 era “OSS Drop Knives” are in private collections and are off the market. One of the best WW2 era “non-regulation” US fighting knives with a lot of character and in excellent overall condition, you will not be disappointed!


Additional information

Weight 2.6 lbs


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