Wilderbrands.myspotify.com

Is there anybody left out there that deals in sport cards without using a professional grading to determine value???
I've been dealing with sportscards for almost 35 years and can accurately grade them all...
60% of the time your pulling 9s out of package anyway.
The value drops drastically if it is not 10 gem mint, in some cases thousands of dollars.
I can understand using them to get top $, buy the time you get it back ,even 10gmints lost value they may never get back to.???
Enlighten me