A long time ago I decided to collect scientific HP calculators only, no business calcs. There were different reasons for that limitation like tight space, money, etc. Today, when I restored the HP-22 shown below, the temptation was too strong and I decided to keep it. I like the Woodstock Series very much, those are so nice and handy little calculators, and they are easy to service (as long as none of the IC's goes crazy). Well, I've violated my own principles (oops, I did it again) but on the other hand I've got now a complete Woodstock Series. So at least I have a good excuse ;-)
As a reminder of my weak mind I shot this picture: