[source] Platinum Cobalt alloy

I’ve been looking for a supplier for Pt/Co, which according to the
Platinum Guild web site is 950 Platinum and 50 Cobalt. It mentions
casting grain, which I could use if I had to, but I would prefer
sheet if someone carries it.

I haven’t had any luck so far, and hope this great magical font of
knowledge, wisdom, and will be able to give me some
leads.

Thanks in advance for any

Tess