Featured German crystal gold foil label help

First photo: I have 2 of these old wooden crates that we had to use a crow bar to open. The writing translates to “Beware Glas”.
Second photo: you’ll see the straw packing we pulled out and all the glasses on the floor
Third photo: a close up of the etched pattern. All the glasses had the same pattern.
Fourth photo: the gold foil label found on most of the glasses. RIO is the pattern. I know this as I found only 2 other people with the same label, but their patterns were RUDESHEIM and MOZART. These are also names of cities in Germany. My brick wall is the K.S.S. initials. I cannot find any manufactory in the German Empire countries to match these initials. Nor can I find these pattern names except for the 2 sellers online. Have any of you come across this particular label?

 

looks like they're from the Atomic age...

 

need_help_identifying_this_champagne_flute_any

 

Rüdesheim is a small German town (on the Rhine).
Mozart was an Austrian composer.

 

KSS Glas is crystal glass manufactured by Spiegelau Glas, originally from the town of Spiegelau in Bavaria.
I couldn't find English language info for Spiegelau Glas, but this is a German Wiki page:

https://de.wikipedia.org/wiki/Spiegelau_Glas

In short: Founded in 1521, they currently make 20 million pieces of glassware per year.

 

Found the company website in English:

https://www.spiegelau.com/en-nl/about-spiegelau

You can ask them:

https://www.spiegelau.com/en-nl/contact

 

The decoration does not look etched, I believe it's wheel cut and left unpolished, that is why it looks frosted. They are lovely stems.

 

I just wrote to her, but the post was over a year old.

 

Thank you. I just wrote to them. Fingers crossed.

 

Spiegelau could be one of the initials on the KSS. I wrote to them a few minutes ago for info and a history.

 

I hope they can help you. If they do, will you let us know? We love follow-ups.

 

I bet the company will be as astonished as you are to find some 50s glassware in its original packing, still sealed. That's a score, no matter what.

 

Absolutely. I saved these photos in my album as well

 

They are gorgeous .

 

I received my first reply from Spiegelau Glass
Here is their translated response:
Dear Ladies and Gentlemen, Thank you very much for your message. Please send us photos for more detailed examination and documentation of your request. Note that we cannot open.heic files. Best regards, Bayerische Glaswerke GmbH Webshop Nachtmann & Spiegelau Zacharias-Frank-Str. 7 D-92660 Neustadt

 

UPDATE: Heard again from Spiegleau, here's there's response on the crystal label:
Dear Donna,
thank you very much for your message and the photos.
We have had this checked by our archive and cannot clearly assign the logo on the sticker to Spiegelau.
Enclosed is a picture of the oldest known logo.
However, it is possible that glasses that were even older or intended for export had a different logo. Unfortunately, we can no longer verify this.

Mit freundlichen Grüßen
Henrik Dieplinger

Bayerische Glaswerke GmbH
Webshop Nachtmann & Spiegelau
Zacharias-Frank-Str. 7
D-92660 Neustadt

photo is comparison of the logos: Im sending another email to see if they will allow me to see the entire logo, I need to see the rest of the "K" name.