Well, that explains one of my mystery keys on my keychain... I used to work with HP 1000 systems. I still have one of the HP 264x 'keys' which opened up the terminal.
From: "cctalk" <cctalk@classiccmp.org> To: "cctalk" <cctalk@classiccmp.org> Sent: Friday, September 22, 2017 1:20:42 PM Subject: Re: HP 2108A key > Unmarked - single sided in an HP 1000 M-series; looks like a cheap > generic cam lock, may be a post-sale replacement lock (due to too > many keys extant, or the boss wandered off with the key) It is > definitely NOT a match for either of the keys that Dennis described. > Cuts from bow to tip look like they could be something like 6-1-3-1 > (depending on depth specs) Confession time. I copied the cuts by hand, and did it backwards because of the similarty of the key designation. Sigh. The correct cuts for the 4T1427 are 7241 read bow to tip. I _think_ Christian's last two systems (several photos each) both have variants of the 4T1427. Here's a catalog entry at CHM for another pair of 4T1427 keys: http://www.computerhistory.org/collections/catalog/102668532 De
