Crusader wrote:
"Can you provide info showing its 1700s, as it would be interesting to update my grey cells?"
Here is testimony from a 1786 wreck
""Seadart Divers have been concentrating their efforts working on a wreck site off the Dorset coast in the UK. The wreck is of the ship Halsewell, a trading ship of the East India Company that was lost to a storm on the 6th January 1786. As "salvor in possession" Seadart Divers have always taken a keen interest in the archaeological side to our finds.""
See:
http://www.seadart.net/gallery/treasure/05.html (for picture of Brass tap previously posted)
since the ship went down in 1786, it places that particular tap as a product of the 1700's (although it could be even older, since people continued to use things that were not broken)