These tuner sets were acquired in bulk from a major high end USA Guitar maker.
The company intended them for use on a guitar that was a prototype, a potential new model. They did not go forward with the model, and these tuners became unused overstock.
These specific tuners are all matte black in color, with a gold color gear. They were specced and specially built for the builder with black plastic knobs.
As these were produced for production and not individual sale, they are not in aftermarket packaging. They are packed in plastic bags with the bushings and screws that are used with them.
The tuner sets have not been installed on a guitar.
From Schertler's site
Schertler tuning keys have been designed and developed by our engineers in Switzerland, using an improved bearing structure for accurate tuning up and down. The design is very "Swiss": distinctive and straightforward, like a Swiss watch, yielding highly reliable results.
...materials and manufacturing excellence ensure a tuner of outstanding quality.