Originally Posted by impression
may i ask how you went about welding it ? it seems very thin copper :S
Yes, I am happy to answer any questions. It is thin copper. It is (was) a pasta container or "tin" like a cookie tin only for pasta so it's a long cylinder with a cap.
"I soldered the valve and filler neck in and lastly soldered the end cap on."
I used silver solder and a torch and soldered the pieces in place then soldered the cap on the end.
I also soldered the long seam and let the solder flow be drawn into it to seal that as well. I hope that makes sense.