Tri Blade Dagger

Ok, I logged on today to share an interesting find and research performed. I am a collector of militaria, so when I encountered this dagger I had to have it (plus it came at a really good price). I knew of no Japanese tri-blades so this came as a surprise. Here is what research uncovered:

a. the enfield hallmarks on the scabbard dated it to 1830's and the dagger and it were a perfect fit, so it was British not Japanese.
b. But the Japanese writing ,,,, turns out it was a "Mother Coin" from the Edo Period 1603–1868 and a valuable coin 300 to 500 depending on source.
c. How did a Japanese coin get on a British dagger? Why would anyone ruin a valuable coin to make a peicemeal dagger?
d. I pondered this and finally have come to this conclusion (My opinion). The only reason someone would destroy a coin as such is because it was not valuable to them which dates this dagger to the early 1800's when someone elected to repurpose a British enfield dagger which by the way also has some value the scabbard alone is over 100 bucks into a home made dagger.

Now the question - did I convince anyone? Any opinions welcomed.

 

did I convince anyone?

so far...no!

 

Darn it, I get an A for attempt and D for success. Davey, I did take note to the cheaper coins but im sure those were the knock offs (not saying that mine isnt), but there are those for sale in the price range i referenced. Bottom line, it was the research of the pick I enjoyed. Now disregard the coin, why would anyone destroy an early 1800s rifle bayonete and scabbard? Too many questions not enough time......

 

Maybe the handle was bust up and this is an uncompleted theater piece ?.....that was indeed made when the components were not yet antiques...

Or...

Why does anyone ...do anything ??