New old stock, quality plaster product. Selling on behalf of someone else, my knowledge is a bit limited but if you have any questions I'll try my best to reply.

Type 1 (first image): 40 mm diameter, 1 available.

Type 2: (second image): 35 mm diameter, 7 available.

Type 3: (last image): 27 mm diameter, 5 available.

€12 each. Viewing in Mosta.