To my knowledge there are no preserved French baroque viola da gamba bows known.
Many bow makers made a guess how they could have been. I based mine on a painting of Marin Marais from the Musée de la Musique in Paris and on a print that is available from different sources. The painting is by Andre Bouys and dated 1704:
*signé et daté en bas
gauche : "A. Bouys pinx.t et sculp.t 1704" * sous le portrait : "Marin Marais / ordinaire de la Musique de la Chambre du Roy" *
The last year I made several of these bows, with slight differences in weight and with two different frog fixations. Most players preferred the clip-in frog, which seems the most logical solution. Two examples:
