To promote the launch of the syndicated MARVEL ACTION HOUR animated series (consisting of separate FANTASTIC FOUR and IRON MAN segments) Marvel gave away this 16-page supplement, and mock animation cell printed on acetate, with selected US titles cover-dated November 1994.
These scans come from the copy given away with FORCE WORKS issue 3. Presumably the supplements were included with the various IRON MAN/ AVENGERS/ FANTASTIC FOUR titles most relevant to the TV series.
The booklet, bagged with the comic, was presented in a flip book format with an Iron Man cover and Fantastic Four cover on the reverse. For ease of reading Slow Robot has dispensed with that conceit here.
It's possible that different animation cells were produced, as it seems a little surprising that none of the principle characters were featured.