Despite being made to appear as a bootleg, Verve's Voyager 1 (released in 1993) was actually an official release with a Microdot sleeve. Brian Cannon, who photographed iconic album covers and sleeves for The Verve in the 1990s, has issued a limited run of artwork prints on the Microdot Boutique website.
A link to the limited edition print for sale can be found here.
In addition, the history behind Voyager 1 and the sleeve artwork can be read here, as told by Brian Cannon.