Getting guarantees on ungraded cards

Before buying ungraded vintage cards with some value, say $50 or more do you ask for unaltered/authentic guarantees if the seller has a solid feedback rating?
0
Comments
Ron
Buying Vintage, all sports.
Buying Woody Hayes, Les Horvath, Vic Janowicz, and Jesse Owens autographed items
FYI, the card is going to PSA on Monday!
Ron
Buying Vintage, all sports.
Buying Woody Hayes, Les Horvath, Vic Janowicz, and Jesse Owens autographed items
<< <i>I think the OP and RonBurgundy are talking about a guarantee of original/authentic, not a guarantee of a specific grade. >>
They are.
You have the right to ask and if they don't, factor it into the price.