Posted for Marteymiso: Blade Markings for Identification
 

This blade is from apparantly standard Spanish types of sword at the end of the 18th century, and these markings are well described in the Wallace Collection references(p.353).
Identical markings with crowned R and an S inside large C cypher with three large 'I's represent Charles III of Spain. Examples seem to have the 1787 date, but whether relating to a regulation or model year/contract issue etc is unclear. Swords with similar marks, date are known used by Spanish during Battle of Cape St. Vincent, 1797, Capt. Horatio Nelson R.N. boarded the San Josef.

Hope you're still out there Marteymiso, sorry nobody answered this.

Thank you! That's still better info than the "whole lot of nothing" I had before.
If anyone else has more hints... all ears!

Me too! Since I identified the markings from actual examples shown in references (Wallace Collection and similar in "Spanish Military Weapons in Colonial America 1700-1821") it would be interesting to what else it could me. The four image cross type configuration was indeed used by the Dutch in some cases with markings known as the 'kleeblatt' (=cloverleaf) and occur on thier coinage. The markings here with the C s III are for Charles III of Spain, the crowned R a regal acceptance or arsenal makg preseumably. Since we have no hilt we can only guess at how it was mounted.

Well I guess thats gonna be it for this one. Unless we discover more on the provenance, without a hilt we cant really go much further. I think the markings have been explained as much as possible also. Incidentally, the VOC mentioned refers of course to the Dutch East India Co. and as noted, sometimes occurs on that coinage with four dots.

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