Vacuum relay tubes

[Strangebrew]

Hi, all.
I have about 80 or 90 of these Amperite 9-pin relays. Got to studying one last night and I'm wondering what other pm's besides the gold plated silver contacts might be in these critters. I can't help but wonder if some platinum group material is in these.

I'm still in the gathering stage of various electrical/electronic scrap, and have not progressed to the testing/refining stage yet. I won't go there until I have the safety and chemistry memorised.

Just thought I'd put up a couple pictures and ask if anyone has tinkered with these at all.

Thanks,
Jeff

 

[Strangebrew]

Resize photos and go again...

 

[Anonymous]

they may/most likely be worth more on ebay as tubes for collectors

 

[Strangebrew]

they may/most likely be worth more on ebay as tubes for collectors

That's what I thought at first. But they're moving slow and priced low. If I had original printed packaging I'd stand a better chance, but these are all in unmarked sleeves.

Appreciate the response.