The World of Autojumbles at your FIngertips

Michael Swain sends me a photograph of a little bike which he acquired about 40 years ago and on which his children learnt to ride on his good friend Peter Harris’s farm in Trawsmawr just north of Carmarthen and not a million miles from where this is being written. The children graduated to Yamaha TY80s and then TY175s, and the bike was barn-stored for 30 years. He’d now like to restore it but doesn’t know what make it is! It bears frame number SLS 57447 and engine number PX 32B 7095/1. Can anyone identify it?