I decided to spend some time cleaning up and reformatting the Curta Calculating Techniques document from Automatic Business Machines.
It is based on the layout and fonts of the proper CURTA manuals and advertising from the same era.
Here's a link to the files - https://drive.google.com/drive/folders/1PH8cO0KoDALgI3b6L1u-I5sANxuqU3jx?usp=sharing

Very nice work! I like neatly restored documents...

Would you allow to publish the documents on curta.li? For this I would get your desired credits (e.g. documents digital restored by Hugo Habicht).

I have already published the older edition of "Calculation Techniques": https://curta.li/05_anleitungen/100_anleitungen/01pdf_02_calculation_techniques_01.html



Thanks

Murff, I would be honored for you to host the docs.
I think the work you've done on your site is very impressive, and the photography is quite lovely as well.
For the credits, please use Sean Johnston, or if you'd like to use my url - http://seanmichaeljohnston.com

Thanks - Sean

...here they are - ready for download:

https://curta.li/05_anleitungen/100_anleitungen/01pdf_02_calculation_techniques_02.html

Thanks

In addition here are... Three English manuals





... also carefully restored by Sean - ready for download!

Would you happen to have a tutorial on how you did that binding? It looks really nice and would be cool to recreate it.

There's a good tutorial here - https://www.youtube.com/watch?v=Av_rU-yOPd4&t=2s

Although instead of a single cover with 2 boards and a spine, you'd want to make 2 separate boards. I used the paper boards sourced from some unwanted books, and found some green linen at the local cloth store.
PVA glue - https://www.amazon.com/gp/product/B0025TZ26Q/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Binder screws - https://www.amazon.com/gp/product/B07VMRYKWN/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1
Gloves to keep the paper and linen clean - https://www.amazon.com/gp/product/B06VSMX1FC/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1


See here also - https://hartnackandco.com/collections/screw-post-binder-portfolios/products/portfolio-book-exp-sp

... some of the files were updated




Calculation Techniques
Three English manuals


please have a look