Here's a scarcely seen Pyrex glass radio strain made in France either by SOVIREL or by their successor Corning France, S.A. It is a beautiful crystal clear in factory mint condition with tiny (as made) flakes. They were apparently poured in multiples chains (or possibly pairs) and then cut along the mold lines on one side, then buffed smooth at the factory.

Measures 7 3/4 inches long from end to end (6 3/4 when hanging from eyelet to end) and approx 1 7/8" wide.

First email gets this unusual radio strain. Thanks!