CLICK HERE FOR AUCTION LISTING!6.75x10" printer's reference color guides were produced by photocopying John Byrne and Terry Austin's linework onto photographic paper and coloring w/watercolors. Coloring was done by noted comic colorist Glynis Oliver (here using her married name Wein), who has signed at top right. Color guide is from X-Men #133, published by Marvel May 1980. Iconic issue features an appearance by the Hellfire Club and sees Wolverine fighting on his own. Splash page shows Wolverine in the ceiling of the Hellfire Club basement, about to drop down on unsuspecting Hellfire Club guards. Color guide has handwritten color notations and shows some lt. handling wear. VF overall.