1) Lithgow Model 1917 bayonet with 17" blade marked with the maker's mark on the left ricasso and proofs on the right ricasso. The pommel is marked "A/75149". 21 3/4" OAL. With leather covered scabbard and canvas frog. 2) Lithgow Model 1917 bayonet with 17" blade marked with the maker's mark on the left ricasso and proofs on the right ricasso. The crosspiece is fitted with a label reading "4775.290.1". Pommel is marked "A/76245". 21 3/4" OAL. With leather wrapped scabbard. 3) Lithgow Model 1917 bayonet with 17" blade marked with the maker's mark on the left ricasso and proofs on the right ricasso. The crosspiece is marked "D (broad arrow) D3" and affixed with a collection label reading "4431.21A". Pommel is marked "A/98519". 21 3/4" OAL. With leather wrapped scabbard affixed with a collection label reading "4431.21b". 4) Lithgow Model 1917 bayonet with 17" blade marked with the maker's mark on the left ricasso and proofs on the right ricasso. Crosspiece marked "3M57597" and affixed with "4431.26a". Pommel marked "A/3605". 21 3/4" OAL. With leather wrapped scabbard affixed with a "4431.26b" and canvas frog. 5) "1916" dated Lithgow Model 1917 with 17" blade marked with the maker's mark on the left ricasso and proofs on the right ricasso. Crosspiece marked "D (broad arrow) D/5" and affixed with "4431.25a". Pommel marked "31928". 21 1/2" OAL. With leather wrapped sheath affixed with a collection label reading "4431.25b" and canvas frog.