2007 release split tape between Austrian project Bonemachine, and American project Novasak, being a mix of Industrial/Noise music.
The tape case has a unique piece of circuit board stuck to its face, each tape front being different. Inside is a laminated inlay card with track details and the edition number.
The release was limited to 16 hand-numbered copies, though fewer than that were released in reality due to the difficultly experienced in cutting the circuit board to fit the cover of the tape box (archived review at Honour and Darkness blog). At least 3 copies are known not to have been produced, meaning that the actual maximum number of copies issued is 13.
In the 15 years since this was released I've managed to track down these four copies - #1, #4, #7 and #10. That leaves circa 9 copies still out there, somewhere ... if you have one, or know where one is, I'd love to hear from you?!