A delightful light blue-glazed U-2531 marked HESCHO on the top of one ear as shown. This style was used in abundance in SW Ontario, with light blue examples used on neutral circuits on many Hydro Electric Power Commission of Ontario lines.

This example is in good shape with just two small marks - a 1/8" ding near the HESCHO marking, and another on the opposite ear.

Now asking $13 USD plus shipping for this example. 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.