Here you can access to an English version of this book: https://brunelleschi.imss.fi.it/esplora/compasso/dswmedia/risorse/eleoperazioni.pdf

That's just the book I mentioned to Fred, of which he already ordereda copy from Amazon US, as he lives on the US west coast.But I might mention yet another ...

I came across this:https://www.wob.com/de-de/buecher/galileo-galilei/operations-of-the-geometric-and-military-compass/9780874743838Maybe that is what you are looking for?

Hello Fred,Stillman Drake, a scholar working on Galileo's works, translated the book into EnglishOperations of the geometric and military compassWashington, D.C. : Smithsonian Institution Press, 1978. bibliographic data at LOC: ...

I have recently run across an original copy of Galileo's Book. on Geometric Compass and Military (1640) in Italian.It looks like a computational device, but I can't say that I ...

Thanks Gonzalo!

> So “Howse” is the inventor of this Slide Rule..And so is a different Howse from the one I guessed at.Great find!!Regards, ...

I have a whole bunch of Otis Kings, which I've been collecting for decades.  Their price on eBay has been declining at about a steady 5% per year, which makes ...

I probably paid over the odds for the K. I'm new to the slide rule market.

An interesting little article.  A friend had an Otis King at school and was the envy of us all. Unless the Canadian dollar has severely depreciated, the antique expert is ...

Here is a brief Ottawa Citizen newspaper article, from their on-line edition, about an Otis King sliderule. https://ottawacitizen.com/life/antiques-made-by-a-king-this-slide-rules The article is from a column by the newspaper's regular antiques ...

Hello In this article from the O.S. there is a page from a W&G catalogue, https://www.sliderulemuseum.com/Papers/W-G_AnAustralianSlideRuleManufacturer_byRobertBruceSandie_JOS_V19.2P59.pdf it says: Howse Navigational Computor Designed by Australian pilot Capt H. Howse for use by Commercial Airlines...etc..   So “Howse” is the inventor of this ...

I finally found the Google books reference and it is on Page 233 of that book. It's by W&G (of Australia) but ...

As it happens, I have a copy of that book, and the name "Howse" doesn't seem to appear in the index, or in any of the alphabetical lists in that ...

Andreas,Its pretty useless you have a Facebook account and are a member of that group as it’s a private group. Dave 

Hi Jerry, I am afraid, that this link maybe useless if one has no facebook ...

I meant to post a link to the FB posting: https://www.facebook.com/groups/739023722850607/?hoisted_section_header_type=recently_seen&multi_permalinks=5944290195657241Regards, JMcC, U.K. ...

The following files and folders have been uploaded to the Files area of the sliderule@groups.io group. /tmp/326254850_629661112302979_7833007641081081106_n.jpg By: Andreas Poschinger <andreas.poschinger@...> Description: Temorary uploaded picture to find out about the regarding instrument and the ...

Peter, does your book contain a picture or whatever indicating that it is for commercial aircrafts? Could ...

I've now found the FB posting here: One John Savard writes: "Google Books tells me that this particular slide rule is mentioned ...