Those were real popular back in the '60s. I had one, maybe it is still around here somewhere. Circa 1966 or so.
The only thing about them is that, being made for the tourist and novelty trade, I question the leather tanning method. It was made for taxidermy, and rudimentary taxidermy at that, not for use that would require flexibility and durability. The tails crack off rather early in the life of the mount, and as I remember, the leather is somewhat stiff and brittle. With its age, I would also suspect dry rot.
That is not to say that it is unsalvageable. Perhaps, glued to a pliable leather backing, you can get some more years of use from the little critter.
Killdeer~thanks for the time capsule!