I have a fired case from an engine start cartridge for a RR Avon engine and I’m curious about some of the markings.
The HS is shown below:
Getting a good picture of the stencilled lettering on the side of the case was a problem. It reads as follows:
No. 9 Mk 2.
ICI / A 9/54.
What does the A above the three horizontal lines (6 o’clock on the HS) indicate?
Also, would the presence of the “K” on the headstamp and the ICI / A 9/54 on the case indicate that the case was manufactured by Kynoch but loaded in Australia?