The WFL(William f. Ludwig)Hardware was kind of like transition hardware. And for those heads...lets just say if you don't want them I'll give you some cash for them. They would be better to keep than throw away. Check ebay for what they are worth.

From meenahga

Hmmmm... to clean or not to clean, that is thy question. Are the original Ludwig heads valuable or are they like old guitar strings, chuck 'em when you change them? And what is WFL hardware?