Assuming that "Ken Nixon" is from a Milwaukee Braves camp, it must be either 1964 or 1965; the Braves didn't remove the tomahawk from the uniform until 1963, and spring training uniforms are usually the previous season's linen, getting one last go before the new ones get broken in to start the season.
And we've had Charlie Williams, wanna-be Angel, in the Vault before:
Finally, it amused me that we were discussing Ashford & Simpson on the same page. Sadly, Tucker's 1983 Mets were not Solid (As a Rock), but Dick had a lovely vantage point in the Bronx at the start of 1969 to watch the Mets begin to discover that there was Ain't No Mountain High Enough for the Amazins to climb…