banner

Bluestar

I could not resist and bought another Bluestar, this one a small one with 13 places in the result register, and no tens' carry in the revolution counter. The machine arrived a little worse for wear though, with the carriage shift thumb buttons both broken off, as well as one of the clearing cranks.

Bluestar 13

So I had to repair them. As you remember from my other machine, this machine, is very, very similar to an Odhner, an Odhner 7 in this case. So also the carriage shift is. Here's the repair...

As received:

Bluestar 13

Bluestar 13

Top of the carriage movement knobs filed flat:

Bluestar 13

center punched - turns out it's just an interference fit:

Bluestar 13

pins drilled out :

Bluestar 13

holes drilled and pins inserted in the thumb knobs themselves:

Bluestar 13

And this is what it looks like when it's all back together:

Bluestar 13

Bluestar 13

Bluestar 13

Bluestar 13

N 131623 ...

Bluestar 13

The serial number is 131623, which could be machine 1623 of this model, which would thn be model 13 ... if the trend seen in my other Japanese calculatorsholds true, this may actually be the case ...