Here is a nice group of glass radio antenna (strain) insulators.

Left to Right

1. No embossing, off clear. 5.125" long, 1.5" diameter. Rough ground end, .5" chip and another tiny one on the back side. .375" chip on on eye. A little roughness around the eyes and corner edges. Sounds worse than it is. $7 US plus shipping.

2. No embossing. Clear or very light straw. 3.2" long, 1" diameter. Ground end, a couple of tiny chips on one eye. Displays extrmely well. A few nice bubbles for character. $4 US plus shipping.

3. Knox / Knox embossed on one end. Crystal clear with milky stringer running from eye to eye. 3.2" long, 1" diameter. Ground end, .5" flat chip one end takes out most of the embossing. $4 US plus shipping.

Shipping is from Canada. Take all four for $13 US plus shipping. I take PayPal.