Thanks! The bilingual LS is certainly uncommon. Coincidentally, I spotted one in the wild for the first (and, so far, only) time at Calgary International Airport last summer:
I’ve seen a handful of systems in Canada that use Wheelock speaker/strobe models with this style of strobe, but all of these signals only featured English lettering. I’m surprised that I haven’t seen bilingual versions of these speaker/strobes; I would assume that they exist, given that remote strobe models were available with bilingual lettering.