Killebrew and Oliva Signed Postcards

A few weeks ago, I bought a couple old, signed Twins postcards. 

I can't resist a Killebrew autograph for $20 or less, which is what I paid for this one:

I also picked up a Tony Oliva signed postcard, for half of what I paid for the Killebrew:

Both came with copies of a PSA Letter of Authenticity, for whatever that's worth, but they both look pretty legit to me and I got them from a seller I trust.

The same seller had a signed postcard of Bob Allison, but I already have one.