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Sunday, June 14, 2015

Kidical Mass ride, and leftovers


I forgot to post two pics from my stop at the SVdP in the Kenmore area, of an Olivetti Summa calculator and a Royal HH.

They  priced this at $24.99.  Too much for what I consider a novelty.  My desk calculator at work is an Olivetti Logos 41PD (Bellini design).

Would you or anyone pay $50 for an HH?  I couldn't see the typeface or test functionality as this shelf was over my head.

Saturday, June 13, 2015

Friday Bikecast

This was at the 6 mile point.  We ended up doing 24.

Slide Rules - with a difference

As mentioned before, I collect slide rules.  Now that I have a variety of straight calculating styles, I've been emphasizing special-purpose rules.  I have a couple for electronics, for example, and a couple of military ones for artillery calculations.
The other day I lucked into a bundled batch with several unusual rules:

This one will be of interest to my readers.  I'm not sure how to use it yet, so feel free to weigh in with ideas.

An interesting specimen that's outlived its usefulness.  I'm thinking it was thrown in with a set to keep them buying those bulbs.  Eventually you used the settings that you habitually did and fixed it in the darkroom.
This is the one that caught my eye.  Still not sure how to use it, but it's fun to speculate on.


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