Indochine Francaise

I have an Indochine Francaise coin .900 poids 27 grams date stamp is 1813

http://answers.yahoo.com/question/index?qid=20100130124337AAlErcF

   Welcome to the site.  
I looked on Numista in 'French Indochina' and the earliest date was 1885 so was not sure about 1813 date. Then a general search found the link above.

   This below is 1895-1928 so still not sure where 1813 comes in - but does yours look like this ...
https://en.numista.com/catalogue/pieces11287.html

Hello, and thank you for your reply. Yes it looks identical to the photos I have found as well and I can not locate any information regarding 1813. Since the French did not pursue the region until after 1813 and given that the coin is identical to the latter minting's I was thinking perhaps an error in stamping ie. using an late 1800's die but not correcting the 8 to 9, in an early run. The coin appears in every manner authentic except, including weight factoring wear.
I have included photos (sorry poor quality, better to follow), front and back and have not attempted cleaning unsure if that would negatively impact potential value.