SUPER SPIDER-MAN #291 COMIC & ACTUAL BLACK AND WHITE ARTWORK BOARD (7 in Lot) - The MARVEL US office would use a Zipatone process to add grey/shadow contrast to the black and white pages produced for Marvel UK & the UK office would then decide which pages and panels of the story to use in the UK version. This lot includes various Thor pages used in Super Spider-Man issue #291. The UK office would also cut out small sections from panels to add contrast and stick them at the bottom of the page as seen on some pages - PROVENANCE: The vendor worked as Art Director at MARVEL UK during the 1970's - Flat/Unfolded