Er er it was like a Molotov co bo cocktail, a thing like that and you put it in the, in the tube and you put a wad of cotton, gun cotton behind it  closed the  flap at the back onto er just a latch, like a, a door a gate latch which locked it, then fired the  cap which fired the gun cotton which sent the  well then we  we're trying this out  on the waste ground where the, that was then, where the waterworks' offices are now in Green Lane, well there that was, at that time, that was a  glue factory  that was the glue factory there  ooh.