Anyglypta is just a textured wallpaper made by crown. Supaglypta is even thicker wallpaper made by crown. Both need a lot of soaking to get off or a steam stripper. if the surface has been painted with silk finish it needs to be scored to allow the steam to penetrate, this will allow the surface to be stripped and then the backing paper to be soaked again and then it will come off. Can take quite a while on some jobs. Most normal plaster wont contain asbestos. Artex form the early days but not necessarily