Bert Blyleven signed 1977 Topps card.
I guarantee the authenticity of this autograph. If it fails to pass authentication AT ANY TIME, return it for a full refund. I've been buying and selling autographs for 30 years, and I was a feature writer for Autograph Collector Magazine in the 1990s.
Please see my extensive autograph listings. I'm happy to combine shipping. If you buy multiple items before paying, the shipping adjustment should happen automatically, but rest assured that I'll always reimburse excess shipping. Thanks, and happy collecting!