RGM actually owns the straightline "NEUWEILER" that you see in your pics - I actually worked with Jochen for many hours , study in the art of Guilloche.
RGM has ( 4 ) engine's.... up front to the left is a Leinhard - right front , Plant Rose - Back to left is the Neuweiler, then to its right a Plant Straightline -

We have been cutting Dials and Movements on a pretty regular basis, ....
http://www.rgmwatches.com/engine.html