a holder detachably connected to said horn, said holder having a corned portion which is formed with a slit, said slit being so sized as to snugly catch {HEAD ~ a base portion} of {TAIL ~ said cutter knife}; and 
of
a holder detachably connected to said horn , said holder having a corned portion which is formed with a slit , said slit being so sized as to snugly catch { HEAD ~ a base portion } of { TAIL ~ said cutter knife } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH