Anidel
I actually emailed Steve at H Lloyd's couple days ago to see if he had any clue re time line for Bonderized decal. Maybe not, but worth a try.
I would think that if back in the 30's the process of coslettization or rust proofing referred to in catalogs was actually bonderization and Holdsworth was placing such decals on their frames, they would have called the process bonderization in their ads. I think extra ammo that this frame was actually repainted at a later date.
Re number on BB, I've found another pic of a Chater Lea shell that has same number, 1563. So this is a BB shell manufacturing number. Other number on your seat lug must be serial. Pics to compare yours and other:
Doug
I actually emailed Steve at H Lloyd's couple days ago to see if he had any clue re time line for Bonderized decal. Maybe not, but worth a try.
I would think that if back in the 30's the process of coslettization or rust proofing referred to in catalogs was actually bonderization and Holdsworth was placing such decals on their frames, they would have called the process bonderization in their ads. I think extra ammo that this frame was actually repainted at a later date.
Re number on BB, I've found another pic of a Chater Lea shell that has same number, 1563. So this is a BB shell manufacturing number. Other number on your seat lug must be serial. Pics to compare yours and other:
Doug