Object Title

Cutlass bayonet - Pattern No.4 1871 Naval model

Cutlass bayonet - Pattern No.4 1871 Naval model


dated 1875

Object Number



Gifted with the Pattern Room by the Ministry of Defence, August 2005

Physical Description

Heavy steel bowl guard with fixing for the bayonet bar. The grip is formed of two scales of pressed chequered leather secured by four pins. The blade is straight and unfullered. The tip is sharpened on both sides, the back being 9 in (228mm) long.



BladeLength25.6 inhes
BladeLength650 mm
BladeWidth1.2 inhes
BladeWidth30 mm
OverallLength31.3 inhes
OverallLength795 mm
OverallWeight0.875 kg


Serial Number None visible

Inscriptions and Marks

manufactures mark
broad arrow over W.D. crown over E over 12 crown over BR over 19 (Birminghanm repair) 7/75
on the right side of the blade


Places Britain


The No 4 Pattern 1871 Cutlass bayonet was announced in the List of Changes, para. 2713, 11 July 1871. The Pattern book describes it thus:
Pattern No.231, Bayonet, Sword, Naval, cutlass guard, No.4 Pattern, 1871, Naval Pattern for Martini-Henry rifle. This sword is lighter and has a straight blade. Recommended and approved after trail on HMS Excellent.
This pattern is new manufacture as opposed to the no.5 pattern which iare conversions.