First raised 1684, Tournaisis was a single battalion regiment and at Minden formed a brigade on the right wing with the 2 battalion regiment Rouergue and single battalion regiment Comte de la Marche.
The same pattern of colours was carried from 1684 to 1775.
Unfortunately I have no 1757 illustration of these flags and the uniform. Basically the regiment had red cuffs, all else being French off-white until 1761 when it acquired red waistcoat and collar; the pockets were horizontal with 5 copper buttons.
P.S. Flag plate updated 16.03.2013 - the original was lacking its pole retaining nails!