They are one of the earlier versions I believe unfortunately both were missing the attendant frog who fans the Slann when I bought them. But I like the idea of slaves because one of the Slann uses human slaves I read.
http://realmofchaos80s.blogspot.co.uk/2012/10/acceptable-in-80s-slann-o-war-third.html - seems between 1987-1992 Edit or Maybe 96 The articles hard to follow
96 was already the big guy known as 5th edition slann... These two guys seem from an earlier edition ... Were Slann was the name of the whole race... 96 was about the time when I was first trying my way through the hobby, and I know I had to decide whether I get a slann or a stegadon...
I now understand the article I think the WD 96 is referring to white dwarf and either the 96th issue or a throwback issue released in 96 that took a look at the models
Some of my new toys - from Hundred Kingdoms - I believe they are closed down so wont be in production anymore otherwise i'd list them on my beast list - however there are one or two more on Ebay if you'd like them go take a look.
My favourite is the t-rex like one with the azinoth warglave (whateve the wow is called) and his tongue poking out like a dog out a car window
It's a toilet roll I keep handy for glue spills etc when I'm doing my modling stuff I'm alkways getting glue on my fingers luckily its poundland glue so kind of naff sticking power to skin