Vintage backgrounds: Another McKechnie Field sighting

A few months ago I posted several A's cards from '68 featuring their old spring training home, McKechnie Field. Here's one more from '69 featuring that ballpark's distinctive red bleachers and suburban-looking fieldhouse. Looks like Topps had airbrushed the "KC" hat, meaning the photo was at least a year out of date, as '68 was the team's first year in Oakland.