BLUE ÖYSTER CULT vintage cut-out printed patch (1980s).
It comes from an old deadstock: it's in mint condition.
Dimensions: W 10,6 cm x H 7,8 cm.
It's printed on black synthetic fabric, with no hem nor border. Looks as it's been cut with a pair of scissors. One would be tempted to think it's an old backpatch or strip that has been cut out (like this Fire Of Unknown Origin one - identical lettering: https://goo.gl/oPoqjX), but it could as well have been sold as is. I'm close to think that it's what it is: a cheaply produced patch - the design being printed multiple times on a large piece of fabric, and then cut out.