I am looking for information about this coin,an 1813 Napoleon demi franc, including an estimate of its value.

Thanks

KM# 691.6 1/2 franc mint: La Rochelle (H) mintage 138,000

VG 8 USD - F 15.00 USD - VF 35.00 USD - XF 100.00 USD

Thank you very much

Gadoury#399 Demi Franc - au revers EMPIRE.
Silver 900, 2.5 grams, 18mm, plain edge. Graveur Pierre-Joseph Tiolier (Tr. initials on left side of 1813)
Mintage 137,881 pieces.
2003 estimated values (in euro): B - 20; TB - 35; TTB - 60; SUP - 180; FDC - -
Total mintage (1809-1814): 12,602,759 minted with 61 dies.

The numbers are a bit deceptive. Here in the States at least the La Rochelle mint tends to be tough to come by. Nice coin.