Adjective
unissued (not comparable)
That has not been issued
Several tracks feature Rotten's vocals from early, unissued sessions, in some cases with re-recorded backing by Jones and Cook. Source: Internet
The second disc contains a previously unissued alternate mix of the album. Source: Internet
Stocks were also printed en-mass and therefore you can find them on the collectors’ market in two different states - issued and unissued - with issued certificates usually holding a higher value than their unissued brethren. Source: Internet