6 pr sleeve.1943

I have a 6PR
sleeve with the letters 6PR 7 CWT and Lot ECA,
It is made of copper, 18.3 cm high, diameter 9 cm.
Does anyone know what the manufacturer is and what kind of guns.

Tom Lahau.
The Netherlands.

This is a 6Pr 7Cwt case for tank and anti-tank use.
Case made by Edward Curran &Co,Aberdare, Wales.

This case should also be 441mm long and have a shoulder in the case walls.

The three tall cases on the right in this photo from IAA forum member Tony Williams’ site (http://www.quarryhs.co.uk/tankammo.html) are what it should look like:

Your example has been shortened for use as a flower vase or similar.