By 1979, Letraset's Action Transfers were being handled by Thomas Salter, whom they had acquired at the end of 1978 for one million pounds.
But when Letraset were themselves bought by Esselte in late 1981 (well after the trade catalogue shown below had been published), Thomas Salter were cut loose again, & so from then on their transfers were no longer branded 'Letraset' — as you'll see from the packets on the next page.
"Four sheets containing 8 colour transfers — over 100 different HORROR pictures"
In other words, fifty (or more likely forty-eight) different sheets, with at least two transfers per sheet.
These two scans were kindly provided by Ralph Rankin, & so far they're the only sign of this particular series we've seen.
However, since all the artwork in these examples was also used previously in the GK175 Letraset Tattooze Multi-Coloured Skin Transfers from 1974, it's safe to assume we don't really need to see all of it to fully appreciate it!
UPDATE: I've now acquired a few more of these transfers, & discovered an interesting thing: the text 'Printed in Italy' prefers to remain stuck to the backing tissue, rather than the plastic. Presumably this is so that people don't rub it down by mistake. However, I've never seen this idea repeated, so perhaps it was a one-off experiment.
"Over 100 different monster transfers — Includes some special 'GLOW IN THE DARK' transfers"
As above, there were forty-eight (or possibly fifty) sheets in all, with four sheets in each packet. We can give you a look at thirty-one & a half of them; I'm afraid ours won't glow, though!
Thanks to Elaine Jones for providing photos of the five transfer sheets immediately above.
The following are Tom Doyle's scans of this series, which previously appeared on StellarX' website, Seven Wonders. (Thanks for getting back in touch, Tom!)
Here are the Space Monster packets, as listed in the Thomas Salter 1981 trade catalogue:
See also: Combat Bubble Gum Instant Picture Sheets ↑
Plus: Topps 1969 Baseball Magic Rub-Offs ↑
And: Topps Speed Wheels ↑
And: A&BC Footballer Bubble Gum with Action Transfers ↑
Picture Credit: The SPLAT Scan Archives — Tom Doyle — Nic Comley — Elaine Jones — Nick Symes — Ralph Rankin — Adrian Allen
© Tom Vinelott 2023