On top is a M.M. FLERON & SON radio lightning arrester in Cobalt Blue. I can find no damage besides the missing nuts.

In the middle is a CORWICO lightning arrester in lighter Cobalt Blue. This one is mint and would pass for new old stock.

On the bottom is another CORWICO, this one darker Cobalt Blue with no damage to the dry process porcelain, but it's missing the washers, and both bottom nuts are rusted in place, while the top nuts move freely.

Asking $15 plus postage for all three.