The folder featured a nice "show-your-hands" graphic of Snow and the boys on the front cover along with the 50th Anniversary logo. The promotional materials were tucked under the inside flap where the contact info for U.K. Distributors was printed.
Folder Front Cover, approximately 12.28" x 8.66" (312 mm x 220 mm)
Materials Under Inside Flap
The fold-open card includes the story synopsis and info on the film's making in condensed form.
Card Front 8.27" × 11.69" (210mm × 297mm)
Printed in the lower right corner of all the B+W 8x10s is the year in Roman numerals and the Disney copyright, "©MCMXXXVII The Walt Disney Company"
UPDATE: Collector Nunziante Valoroso shares a couple additional 8x10 promo photos from his collection. They contain identical markings along the bottom edge as those seen above, placing them to this same time period.