Ron Cooper made my bike for me in 1982 at his Honor Oak shop. I received the standard treatment on lugs which had the spade, clover, heart and club in the inside of the fork. Wherever possible the lugs had triangle cutouts to reflect the triangle logo stamp on the front of the head tube. The bottom bracket had only an oval cutout behind the seat tube but other than that no other cutouts but still the taper on the ends. One distinguishing feature he added to my bike was the letter "C" on the top of the down tube head tube joint. Never saw this before. I have attached some photos.cooperbb..jpgdowntubeC..jpgroncooper.jpg