Let me correct one thing from my earlier post. Most collectors are insterested in cans that either contained or still do contain oil. Myself--full is king.
I have no issue with relids as long as it is done well and right to the cans age. I have 2 relids that I have purchased.
If you're a purest, this will be a tough one to always sort out. Learning and looking for clues to a relid are your best defense i.e. straightened cans(flattened out wrinkles), a lid that was pressed over the rim of a cut out lid, unmatching top and bottom lids, plain lids with no weights marked at all, irregular crimping around bottom edge of lid and even lack of company logos or embossing as some companies were very partial to marking top lids with their names like Gulf, Sinclair and Shell. I bought one recently off Ebay that had a right lid with a weight of 40 on it only to realize that inside the graphics on the front of the can, the manufacturer had printed in the paint 10w-30! I felt pretty stupid after noticing that flaw but I took solice in the fact the relidder never took it into account and the original owner never caught it either. These are not "law's" but rather markers to look for. In the end, are you comfortable with it or not.
I've learned a lot from learning to "read" lids.........Dave
