Anyone recall "Castlemaster", plaster mould making kit?

Hello model builders, heaving read all the above - this chat isn't particularly up to date, but it's still worth a try: is there anyone out there who still remembers Castlemaster plaster stone construction? Would anyone be interested in buying my various moulds?
Feel free to contact me at localix@web.de (Köln-Cologne/Germany region).

The following keywords are for identification purposes only (possibly protected trademarks):
Castlemaster: the castle building system / le Bâtisseur (MECCANO/Mecca Hobbies).