Naturaly all of us would love to have a weapon (or two) with an history behind ... one with a dueling background would be an added value.
I know a collector who, during his gathering struggle, has gone into extreme situations, like swapping hundreds (hundreds) of regular muskets for a most wanted rare example; and having bought an entire collection of gun locks for the acquiring of a single one. I am not kidding; a member of this forum knows to whom such collection was purchased.
A 'modern' chromed sword having a three kill mark in its grip would easily stand in front of the line; and the owner having had his name in the hall of fame
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The three crosses could have been made for whatever reason; from being the user's mark to distinguish it from others at the depot to being a later owner (youngster ?) wishing to give it the "kill look".