Hi guys, just a question when it comes to oil can printing errors. Are they worth anything? My friend has 3 Red Head oil cans that are silver on the outside with the red head writing in red but the inside is yellow how it should have been. Are misprints worth anything? I will try to get a photo.

https://www.ebay.ca/itm/Very-Rare-Red-Head-Quart-Factory-Error-Oil-Can-One-Of-A-Kind/152912243149?hash=item239a47a9cd:g:P8wAAOSwLIdaiKYf

That's the one. Any idea on value? He has 3 for sale.