18 Pounder info

[Haydn]

Hello gents,
My first post here I would appreciate any information you could give me on this shell casing I recently picked up. I have worked out a few of the markings but would be great to be able to identify all these markings. I would guess that several are going to be inspection marks but I have no idea which is which at this time.

It is an 18 pounder in a mark II case manufactured 1915.
The A in a circle represents that it has been fired once.
The S indicates it has been tested with a sclerscope.
The CF loaded with cordite and set for a full charge.
Lastly, the C Broad arrow indicates Canadian involvement?

I guess the 4.12.15 was the actual date of manufacturer?

I would be interested to know what the following marks represent:

QN
CRY
S in a double circle
L with 2 dots
The single letter F
The letter F with a broad arrow
The number 6 in a circle and the single broad arrows near the 1915 mark.

With reference to the double slotted firing device (what is the correct term for this?) I know nothing. If anyone could help me with these markings Id be very grateful.

Thanks for looking at this thread.

Regards
[FONT=&quot]Haydn.[/FONT]

 

[TimG]

Haydn,

The A in a circle denotes that the case has been high temperature annealed

The S in two concentric Cs is the makers trade mark, their identity totally escapes me at the moment.

The single F this belongs with the C.F and is an indicator of the case life history. Likewise the F with the broad arrow. In this particular instance it shows the case has had three full charges. Taking a simple approach, we can assume the case has been fired three times.

CRY Great Central Railway (Chief Engineers Office) Gorton, Manchester. A bit confusing as this establishment manufactured cartridge cases, I suspect that they have repaired the case or have carried out some work on it after firing. A repairers monogram should be within a rectangle.

L with two dots I suspect this is a poorly struck repairers monogram. The L is part of the rectangle and the two dots are probably the top of a M

QN I dont know, if it was a N by itself, I would suggest that there was a naval cnnection.

The double slotted firing device in English, is known as a primer

This appears to have been originally manufactured in America;

A.L.C.O., U(?) S in a circle. This I believe to be the United States Cartridge Co. USA who were a sub-contractor of the American Locomotive Company.

The primer is also stamped R.A.L. this is the monogram of R.A Lister & Co., Dursley, Gloucester. Lister, who as well as making primers, repaired them, suggesting that this particular primer has been used more than once.

Regards

TimG.

 

[Haydn]

Hi Tim,
You are a star - very informative indeed, thank you very much.

If you remember the makers mark, perhaps you would be so kind as to update this thread.

The only bits of information missing is the 6 in a circle and 'QN'.

Many thanks.
Regards
Haydn