I have in my ownership three Claud Butler frames. Model types authenticated by their previous owners. All frames just one previous owner. 1. 504 2544 1950 International Club original owner Frank Butler my father. Original colour flam green with chrome ends and fork crown. Contrast lining in white. 2. 524 1568 1952 International Path original owner Ted Tyndall. Original colour flam silver with chrome ends and fork crown. contrast lining in red. 3. 5412 8756 1954 Buccaneer original owner William Hollis. Original colour yellow. This machine was fitted with a very rare CB type of transfer. These have the wording CB The Worlds Famous Lightweight. Supplied photos to the V.C.C. Claud Butler marque enthusiast of these very unusual CB transfers. Was told these were only fitted to export orders but I cannot verify this.
Best wishes and be lucky. Michael Butler Huntingdon UK.