This spool came from an old IL collection (1971) that made it to this state via an inheritance...the lady that had them took them out of her mother's attic in IL after her mother passed away. I have not been able to find this spool in the insulator price guide or on GIFONA. Dimensions are: 68mm tall, 77mm diameter. The glass is a weird straw color with some bubbles. Any ideas for CD or origin of this spool insulator? Thanks,

Mike Gay