Ken Osmond did a photo layout for Brainstorm, a company that specializes in unusual gifts a decade or so ago. (Unfortunately they are out of business as Brainstorm and are now called The Anatomical Chart Company.) But they used to carry autographed baseballs by Tony Dow and Jerry Mathers and Sweaters from Mayfield High.
After the series, Ken worked with his brother who owned a helicopter service and later for the Los Angeles Police department.
(Click on image above to see larger view)
Here is a picture of Ken when he worked for the LAPD as a motorcycle cop.