Got me some files, and very aching legs.......didn't see you, Alan. Did see an old friend, Mike Hanscombe, from Severn Valley/ Crofton Beam Engines/ Kennet and Avon canal days. He was demonstrating the miniature lever frame and signalling/interlocking on the 7-1/4 inch gauge society stand. Got the book on LBSC, his Life and Locomotives. It's quite interesting to see that some of his designs are still being built, 50 years on. Question: are the techniques he used for his boiler designs and construction considered OK by today's standards, or is there a pragmatic approach taken on the basis that they've never been known to fail? Peter Chadwick Swindon. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.