The British comic Vulcan
ran for 30 issues only released in Scotland, and then 28 additional issue released across the whole of the UK. The final issue was the one cover dated 3rd April 1976. A couple of years back someone online speculated what stories might have gone into subsequent issues, mocked up covers in photoshop, and made cbr files using stories scanned from other comics. These are not legit issues, any more than if a fan was to cut and paste old stories from horror comics to make up "new" issues of E.C.'s Tales from the Crypt, but someone has added over a hundred of these fan-made issues to the Vulcan listing.