Hi Kelli,
Just waiting for a response at the moment, however, I can give you an end-date for Noack, who appears to have ceased work in 1847. Therefore the glass element falls pretty much into the time-frame suggested of @1830-1845.
The castles stamp is for the assay office in Hamburg. Can you tell me if there is a single letter stamped on the silver and if so, which letter?
Thanks and regards,
Marcus