Jacks I.D. And Concorde Bit

Just met a chap that wants to get rid of a couple of aircraft jacks which appear to be un-used.I cannot get the photos to down load,but the wrapped one has a 26AT prefix on it.the tubes for the jacks are about four feet long and three inches in diameter.a large coarse thread unscrews fron the tube with a finer thread insert with bracket on the end within that.
He also showed me a chunk of Concorde engine which appears to be some section of turbine.He was working in Shepton Mallet in 1968 and was working in a field when he heard an aircraft noise which was going on all the time he was in the field,followed by a Big Bang.He went to investigate some time later after finding out they were testing the engine for Concorde ( to destruction) in Windsor Hill Railway tunnel.He told me the tunnel was sealed at both ends with thick sand filled doors fitted..they ran the engines at full pelt until they blew up (Days ..I was told).He found the bit outside the tunnel in the grass..obviously over looked when they cleared it.