Here is a link to what appears to be a manual for the ROCKSTROH VICTORIA press written in German.
Hope this helps.
https://www.flickr.com/photos/bogtrykkeren/51674455558/in/album-72157720132189468/
Hope this helps.
https://www.flickr.com/photos/bogtrykkeren/51674455558/in/album-72157720132189468/