I have been looking for a Commodore calculator for a while. Preferably the Minuteman. A sale of seven calculators came up for sale for $50. Two were Commodore and one was Radio Shack so I bought the lot since he did not want to split it. They are in really good shape and all work 100%. They were obviously owned by a collector, not just in a pile somewhere.
The Commodore ones are from 1972 and 1973. The C*8 is made in Canada and the US*8 is made in the USA. The are similar except the US one has a slider for decimal location. The 8bit Guy restores a US*8 on YouTube. I can't find a manual for either anywhere on-line.
What I wanted out of the bunch is the two Commodores and the Radio Shack. But there are two other odd ones that have a VFD I will probably keep. The other ones I will give away but I can't imagine anyone local wants them but I have a friend who can sell anything on EBay so I will give them to him since throwing them out seems kind of sad.
They just need a bit of cleaning. The ribbon on the mechanical one is dry.
There is one not in the pictures I have to fix. A Lloyd's pocket calculator in the original box. Has a VF display so cool, just the keys do not work. Working on it tonight.
I put one of the Commodore ones on my desk at work and have used it a few times for simple things (I do engineering work). Not one person at work has commented on it... Could just be my desk is such a mess they didn't notice it.