[urbanspaceman]

Matthew Boulton's company published an illustrated catalogue showing all the sword-hilts he offered.
It is an extremely extensive selection of very detailed drawings.
Unfortunately, I do not have/or can no longer locate, my copy of this catalogue.
My hard-drive is packed with research material and every time I attempt to tidy it up I seem to hide some things... sorry.
I will have found it on-line so I am sure you will be able too also.
In a nut-shell: Boulton was a Birmingham metal-works producer offering everything from buttons to candlesticks and was even minting money for the Crown at his Soho Mint. He was partnered with James Watt of steam engine fame.