I have a ton of these I'd like to get rid of. I have the 3-chip kind, the 9-chip kind, 80ns, 70ns, gold contacts, tin contacts, yadda, yadda, yadda. Let me know what you want and I'll look for it.
All have been tested by running through 20+ passes of GURU 2.9's memory integrity test in my IIsi.
How about $5 shipped 1st class mail in the USA for a set of 4? I'll drop them in a padded envelope to keep things on the cheap. If you are international let me know and we will work something out.
Paypal only to keep things simple.
Message me if interested.
Thanks for looking,
P.S. I have a ton of 256k SIMMS too.