the potential sources seem to be increasing
.........we've had Finnish and Norwegian, and now we have suggestions of French or Belgian.
Stylistically, there are approximately similar designs in the Dorothy Bosomworth (States produced) version of Silber & Fleming, so the date guide of late Victorian is going to be rather obvious, assuming not a modern copy. I'd also wondered if the marks might have appeared more worn if this was, say, 120 years or more old. From what little I've seen, hallmarks etc. often look more feint on antique silver/plated wares due to cleaning/rubbing.
If you are out collecting and do use the finger pad to assess whether silver is present, do remember not to use that digit for eating from your bag of sweets - silver oxide I believe is quite toxic.