Cheap on ebay a while ago. I don't know who Wendi is but I don't care either. It's a Jimmie Reese autograph! You don't get any better in Angels lore than Jimmie Reese.
From 1972 until his death in 1994 Jimmie was a conditioning coach for the Angels. He was often seen during BP hitting fungos. His number 50 was retired by the Angels.
Looks like this postcard was a team issue in 1986. I'm not sure why the back was stamped JUN 28 1990.