An odd U-308A in a very cool streaky, "wood grained" brown glaze. Sort of has a metallic sheen to it, and a lot of nice black highlights. I don't know a lot about these but the odd one has turned up here in Ontario.

This one has two 1/2" base flakes on opposite sides as shown. The third light area is an unglazed spot on the base edge. It also has a burst/open cavity on one side of the crown that appears to be from manufacture.

Asking $9 USD plus shipping for this one. I'm always happy to trade for early Canadian glass or Canadian-made porcelain insulators. I accept PayPal, or personal cheque from any member of ICON or any collector with whom I have dealt before. Please feel free to contact me with any questions or for more photos, and look through my other items or unsold sales stock to combine shipping on items.