Realistic Supertape Gold - 1986 - US
Realistic were a brand of Radio Shack / Tandy. Even though there were Tandy stores in most UK towns, their cassettes are now very hard to find.
This was a US only cassette, from the mid 80s.
The leader is blank, the shell looks like a 70s Maxell, but doesn't feel as good.
However, despite speckling on the paper label, I tested some of these and was very impressed. These can be classed as a super ferric and virtually unobtanium here in the EU.
It's a quirk for us here in the EU to have an American made cassette, as opposed to it being a tape made elsewhere for the US market.