ID some core memory

william degnan billdegnan at
Sat Dec 30 13:21:54 CST 2017

Just curious...can anyone id the system that used these two types of core
memory?  I am thinking the first is a hand-made custom core, but the 2nd is
definitely from a commercial system.  Looks kind of IBM-ish but it's
nothing I can ID.  It's not an IBM 1401 I don't think.

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