Here's a rarely seen or offered glass battery rest insulator made in France by Folembray. Base embossed Folembray No 588. Measures 4" x 1.25" tall. 1" x 1/4" half moon bruise and teeny flake are the only damage apart from light wear marks. To see crude base and embossing [id=329700939].

First email gets this tough piece for only $125 postpaid. Thanks.