Fuze, Percussion R.L No 7 Mk 11 & Mk 111*.

[ron3350]

I show the R^L Fuzes Percussion Mk 11 and Mk 111* used in Breech-loaded Land Service 20Pr, 12, 9 & 6 Pr segmented and common shells.
The fuze has a twisted safety pin and square hole at the top for the GS key.
Mk11 was introduced in 1873 and the Mk111 in 1887. I have no information on the Mk111* fuze. There was also a Mk 1V modification.
Note that the Mk111* has an extra 1 stamped and the modification date when the Mk11 fuze was modified.

 

[wingsofwrath]

Very nice! here is the relevant page from the 1877 edition of the "Treatise on Ammunition"

View attachment Treatise-on-Ammunition-1877_Page_367.jpg

Also, in Romania we had a locally produced version of this fuze called the "Focosul Percutant Md.1881" (Percussion Fuze M.1881) used by the 63mm Armstrong Mountain gun M.1883, the breech loading version of the Armstrong 2.5-inch RML.
Interestingly ours either had a round instead of a square cutout on the top of the fuze or lacked it altogether.