Would seem that the moulded decanter Registration given above, may possibly have been mis-read.
I've checked 360410 with the Kew Archives, and it's not a piece of glass, but looks like lace of some kind - although not sure why the Register is showing Class IX (which is Yarn), since there is a Class 13 especially for Lace - but have to admit I don't know the difference, technically. Perhaps it's the shamrock causing confusion

The date of Registration - for this 360410 - appears to be 17th July 1900 - and Kew references are.........
BT 51/162.......for the Register - and BT 50/395 for the Representations.
So.............not a decanter

and since this isn't glass, then feel free to delete.
A few more answers coming, hopefully tomorrow.