I couldn't find on the Internet a Bourguignon Maurice priced at less than $10.000. This certainly looks as if the seller tried to make an "irresistible offer" with their chinese violin that even had a inkjet paper label inside.
Here's one for $1975: http://www.homerweb.com/vintage/GREAT-Old-Antique-BOURGUIGNO...
That said, it doesn't sound like either have been authenticated and have been identified only by the label.