Mystery Mark Challenge - Solve the Mystery and Win a Coin Silver Spoon

Offered is a challenge - identify the silversmith who made this spoon, with a verifiable and supportable attribution, and I will send you a surprise coin silver teaspoon in good condition (worth about $15-20) as a prize! I haven't yet found this mark anywhere, and thought it an interesting experiment to leverage the talents of some of the silver enthusiasts and experts out there.

This piece measures about 8 1/8 inches in length and weighs about 64 grams. It is marked "R.L" in an squarish punch. There is no sign of engraving or erasure. The style is similar to French fiddle pieces, particularly earlier and more rural pieces. It is likely the silversmith worked in an area with French influence, either a French colony, or more likely, given the mark, interior Canada, New Orleans, or the Mississippi valley. Even if you can't attribute the piece, I would welcome any information at all, such as descriptions or pictures of other pieces with this maker's mark. I would estimate this tablespoon dates to the 1780-1830 period, but it could be a few years later. Thanks!