Vintage Christmas carolers (5). ? Jasco brand.

Vintage Christmas carolers (5). possibly Jasco brand. What drew me to the are the unusual bright colors. These lovely vintage carolers are in great pre owned condition. I am not sure what they are made of but they do feel like ceramic to me. They have felt on the bottoms and a partial sticker is showing on one but I cannot read it. They measure 6 to 6.5" high x 2.5" on the bottom. box 47