Louise-Kohle calendar 1938

[Datrus]

Found these items. A calendar from 1938. Looks like it is from a company selling coal and fuel. I can't find any info on the company, Louise-Kohle. Any opinions? I also got this mechanical calculator. I think it's post war, but the guy i got it from says otherwise. Let's just say i am not convinced at all by the story. It was supposedly found on the Eastern front during the war, but i can only find info on this being made in 1950 and on. But you never know. Anyone knows about this strange contraption?
No eagles or swas on it.

[Teutonicknights]

I think the book is good, but the calculator might be post war as you say...

[Datrus]

Thanks a lot Teutonicknights.

[Teutonicknights]

[Datrus]

Anybody else who can share some light on these items?

[HPL2008]

Anybody else who can share some light on these items?

Not on the calculator. As for the calendar; the title page translates as:

"LUISE-COAL
LLC

Sales company of the
German-Upper Silesian
state-owned mines

KÖNIGSBERG [Prussia]
Sattlergasse 6. Telephone 4 18 62 / 63

Supplies first-class hard coal
from the state-owned mines
Königin Luise Ost- und Westfeld
[= Queen Luise East- and West Field]
and the Delbrückschächte
[= Delbrück Shafts]

All other fuels in first-class quality"

The Königin Luise [Polish name Królowa Luiza] mine was located at Hindenburg [Polish name Zabrze] in Upper Silesia. It dates back to 1791.
In 1926, it was taken over by the Prussian state-owned "Preussag" company and subdivided into the aforementioned Ost- und Westfeld [East- and West Field].

The Delbrückschächte were at Makoschau [Polish name Makoszowy], a mining settlement that was also a part of the Hindenburg/Zabrze municipality.

For some history on the mine, please see:
History .:Museum od Mining

[big ned]

Welll, the unused diary is just that, given as corporate gifts and never used, I got several every year at work. The 'Addiator Duplex' was an invention of one Carl Gubler, and was originally produced in Berlin in the 1920's. Yours is a 8 column, 9 digit model measuring 5" x 3.1", subtractions are done on the reverse side. As you have said, this model is from the 1950's through to the 1960's. The company was sold on a couple of times, ending up in Bavaria where it was wound up in 1975, the modern pocket calculator doing for it.

Regards, Ned.

[Datrus]

Thank you both HPL2008 and Ned. Much appreciated.

Regards