Hi,
Simon Rosenau had well documented ties with Hanau industry, most notably with Neresheimer and Schleissner.
It has been postulated that most of ‚‚historical‚‚ silver marked by Rosenau was actually made by other Hanau silversmiths.
The example bellow shows SR mark with chalice and pellets mark, which is well documented Schleissner mark.
Having in mind various combinations of Hanau marks and their crossover, it is really difficult to attribute your items with absolute certainty to any of Hanau silversmiths. Based on similarity, the best candidate is Rosenau, but on the other hand, he had silver made by other silversmiths in Hanau.
Regards
![Image](https://abload.de/img/hanaurosenau2biszgjv5.jpg)