This is marked 'L1/56' on the ring for Robert Hauschild of Pforzheim. The ribbon is period, but a little on the narrow side, possibly a piece of tunic buttonhole ribbon. General condition is excellent, if somewhat tarnished.
If you want to comment on this item—re quality, age, etc—please email me.
The buckle arrived today, thanks for the fast dispatch, a nice addition to my collection
L M, Channel Islands, 09.04.2016
Just letting you know that the whistle arrived here this morning safe and sound. Your excellent packaging was still totally intact and it took me all of five minutes to break into it to see my purchase. I am very pleased, it is a great whistle.