there's 4 of each of the *dads*
pat pend hk
pat pend china
non pat pend china
nc/spanish
the only one that's a higher value than the others is nc/spanish, and it's not a huge difference. *sometimes* I have sell a china dad for slightly more than hk
basically, hk $10-12, maybe up to $15
china usually $12-15
nc/spanish $15-30, usually $20-25
I have all but 2 of the non pat pend china dads (will pay/trade well if anyone has one!
the slight color difference is normal