Information about this bayonet
This bayonet has a typical Ames hilt type #1. The smooth ribbed brass hilt is 123 mm long and has 16 ribs. The muzzle ring is flush to the hilt flat and the inside diameter is 21.5 mm. There is a forward swept round finial on the bottom of the guard and no finial on top of the muzzle ring. The press stud and 41 mm long spring are typical Ames construction. There is no blade rivet in the center of the cross guard.
The lug slot is chamfered around the top edge and there is a 24.6 mm guide slot. The hilt flat is usually stamped with a three digit number in a 1.5 mm font.
The yataghan blade is ~510 mm long, 28.1 mm wide, 7.6 mm thick and has unstopped fullers. The blade is unmarked.
Information from other sources
Speculation and questions
The size of the muzzle ring is either too big or too small for the rifles commonly encountered with a 24.6 mm guide slot. Two examples are recorded here and others have been seen, so it must be fairly common.
Muzzle Ring Diameter -------- 21.5
Overall Length ---------------- 628*
Hilt Length -------------------- 123
Blade Length ------------------ 505*
Blade Width ------------------- 28.1
Blade Thickness --------------- 7.6
Lock to Muzzle Length ------- 99
Press Stud Spring Length ----- 41
Guide Slot Length ------------- 24.6
Lug to Stop Length ----------- 13.7
Lug Slot Width --------------- 4.9
Lug Width -------------------- 9.3
Lug Thickness ---------------- 2.8
Lug Depth -------------------- 7.8
*The blade tip has been lightly repointed resulting in some loss to the overall and blade lengths.
This example is numbered 194 on the hilt flat in front of bar slot in a 1.5 mm font. The blade is unmarked.
Muzzle Ring Diameter -------- 21.1
Overall Length ---------------- 630
Hilt Length -------------------- 123
Blade Length ------------------ 508
Blade Width ------------------- 27.3
Blade Thickness --------------- 7.2
Lock to Muzzle Length ------- 99
Press Stud Spring Length ----- 41
Guide Slot Length ------------- 24.6
Lug to Stop Length ----------- 13.2
Lug Slot Width --------------- 5.1
Lug Width -------------------- 9.9
Lug Thickness ---------------- 3.1
Lug Depth -------------------- 7.6
This bayonet is numbered 231 on the hilt flat in front of bar slot in a 1.5 mm font. The blade is unmarked.