If you would like a reference, you can contact Bertrand Malvaux, whose site is listed on the NHS links page and with whom he has been on friendly terms for more than twenty years. Or you can also ask M. Croissy or M. Dey, who are also French experts in the Napoleonic field and have also known him for several years.
TERMS OF SALE: Payment by international bank transfer (Please contact me for Belgian bank address, iban and bic numbers) or Paypal (no credit card transfers without prior agreement). The seller reserves right to delay shipment until bank account is credited. Return for full refund (except shipment and bank or Paypal fees) accepted within one month of receipt if item is proven not to be authentic or as described. To increase safety, shipment and payment could also be made through a Belgian or French acquaintance of the buyer. Euros have been converted into USD using the latest market rates. Prices could thus be slightly different on the day of purchase.
Registered shipping by DHL is extra. This seems to me to be the safest and quickest way of shipping documents all over the world.