S&M seat well sofa seat help

[m1ke]

got a mid school haro a while ago that came with the below on it

does anyone know what year these came about as i was think early to mid 90s ?? and what are they worth as ive had plenty of interest with the old how much you wanting line  i have no idea to the value and tbh not sure if i wanna sell 

[dordymush]

alex would be the man to ask i'd think for deffo.
and dont forget i asked first  

[Betty]

Very late nineties, may even be early 00's