These transistor era circuit boards came out of a General Electric GE-210 computer system which was also called the ERMA Computer developed by GE and the Bank of America and revolutionized the banking industry. These 7 different circuit boards came out of various parts of a system originally installed at Dartmouth College in 1962 (Machine #19 of 35 built) and later sold to Pillsbury in Minneapolis, Minnesota. It was a very large system and when it was shut down in about 1979, several parts of it ended up in my classroom for display purposes. I have included photos below to show details and the condition of these items. I have been selling these types of boards on for more than 10 years—a few sets a year. I just recently sold my computer collection to a museum and have only a few sets of these left to offer on . Shipping within the United States will be by Priority Mail Medium Flat Rate Box. I will combine postage if buying multiple items, but please wait for an invoice with the new postage total before paying.