If anyone, used approval services, back in the late 60's and 70's,
a company, which I don't know who, had a program named Lotta Stamps.
Here is the glassine the stamps came in, It kind of looks like
Kenmore. If anyone knows the company, please let me know.

I was going thru a boxed lot, at my last club meeting, and I pulled out a bunch of China Peoples Republic, complete sets.
This set, SC 713-715 1963 monkeys sold for 65 cents

The 1997 Scott Cat value is $ 7.55