I had a dozen of each of these, and I sold a lot of 10 and 10. These are my last two of each.
Sure these chips are common, but they are also cheap. :-)
http://cgi.ebay.com/2-Maxim-Chips-2-Horseshoe-1-Closed-Obsolete-Chips_W0QQitemZ150389399081QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2303e81e29
