Vintage International Stamp Sets

I've got a small collection of vintage postage stamp sets from H.E. Harris & Co. It includes sets from Russia (1961), Liberia (1964), Surinam (1965), Jamaica (1966), and Egypt (1954). They're still in their original collector envelopes with the catalog details printed on them. Used, but they've been kept in these sleeves. Pretty cool little time capsule for anyone into philately or just likes old paper stuff. I'm not a pro grader or anything but they look decent for their age.