Leon,
Please, you can move this to the Boxing side if you'd like ..............
Dave,
Hmmmmmmmmmm........... you're right, something doesn't fit. The back is missing the AZO stamp printing. But I'd have to say it is period, and the guy was in Reno at time of fight. But, again, in Reno for the Johnson/Jeffries fight, I'd imagine everyone was "hustling" something for some profit.