So, I hate to be redundant and beat a dead horse, but I'm still trying to wrap my head around a few final questions. CC, on your m1804 with the crown mark only. Do we know that this model was only exported to Sweden? In other words, this type probably didn't go to Portugal or another friendly nation? Were they used by their navy or strictly their merchant fleet? Were they only distributed during the time of the troubles or did they continue to produce this type (as indicated by another source I read claiming large purchases into the 1830's?). I would assume with rare exception that swords marked GR, WR and VR were used by the British naval ships only. Would you mind showing us a closeup of the Swedish crown marking for posterity? (sorry to trouble you. I myself am not so great at posting pics, let alone using software/electronics/social media, etc, etc. As I always say, "Luddite and proud!"
In looking at the 'oddball' S&K model from Boarders Away (pg 88 and the spurious GR marking on 86), Gilkerson implies that the reason the German manufacturer, who made these up until mid to late 19th, apparently, used the obsolete marking was to show "quality". Hmm, well it was an ordnance stamp showing government use and much as the broad arrow, was meant to detract from blokes stealing the swords after their tour of duty ended. I personally believe this GR stamp was used both out of reverence for the old popular British model and a reminder of Great Britain's kind friendship in helping her allies. One will note this spurious crown, as it is different from most others. It is three 'lobed', tilted slightly backward to show the inner rim of the interior and has a small cross at it's peak. Familiarizing oneself with this mark and also noting the subtle differences in this German model's design should help distinguish models made in England during the period and those that created at a later time.