The community is St-Elie de Caxton, Que. (Quebec).
For the name I can make out only "N. GUILLEM....". A search with that partial surname and a wildcard shows that Guillemette is a surname that pops up a few times, historically and recently, in St-Elie de Caxton.
There are apparently many summer cottages there. I wonder if it is an owner's sticker rather and a manufacturer's.