Pressed in 2000 copies of which ca 500 was sold in England.
Released May 1983 according to this article in VK.

Thanklist: Mikael Grundberg, Tommy Marklund, Ove Karlsson, Carre, Allan
Info about the EP recording (from interview in Black Writs reissue)
Ola: I remember before recording "Black Writs" my brother had given me an echo unit for my vocals. He had leukaemia and I made a bone marrow transplant, I think we were number seven in Sweden to do that. As a thank you he gave me the echo unit and helped finance the EP. Around this time we did our military service. Jonas received a discharge, but me, Mårten and Thomas did. Björn is a year younger than us, but he also got a discharge. I was granted a three day leave from the army to record the EP and we entered the studio in February 1983 to record. When we were finished in March, we were gonna be big rock stars! For "Black Writs" a friend of mine from the army, Anders Sellberg, did the artwork. The photo on the back, what you can't see is that we are standing knee deep in snow!
Björn: I remember we got some type of distribution deal with SOS Records. Back then we didn't know much about the music business and did most of the things wrong. We paid for the recording. A friend of ours, his father had a print shop, and he printed the covers, but they were only folded in the back, so we had to sit in the rehearsal room and fold and glue them ourselves. We received the discs in packs of 30 from Grammoplast press plant and had to put them in the sleeves ourselves. We printed 2000 copies, and we didn't receive a cent from SOS.