The m1804 British naval cutlass

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Originally Posted by Radboud

Thomas Gill Snr. Was most certainly manufacturing his own blades before his death in 1801, since this was the whole point of the tests, to prove that the blades he made were the best available. (It is widely believed that Thomas Gill was the original source of the "Warranted Never to Fail" quality mark that became popular in the period).

Although there is evidence that he wasn't above selling German blades as well, seeking to acquire some of the stock that had been confiscated from J J Runkel for avoiding duty on his imports.

The more you learn the less clear cut it becomes!