An antique sterling silver and cut glass decanter by Hukin & Heath of Birmingham, hallmarked for 1927. The neck of the decanter is cut, the rest of the bottle and the stopper have an optic pattern. The decanter glows under a black light. The decanter is approximately 13 inches tall. There is some old residue inside that I've not tried to clean out, there is a small chip/crack inside the top that is covered by the silver and there is a small nick to one facet (the tip of the pen is pointing to these), and there are some tiny dings and scratches to the sterling rim.
Please see the photos for details.