"Premium" was used on American coin silver, Kovel's shows a Samuel P. Bailey working in Indianapolis from 1851-60. Will leave anything else to other members with more knowledge and better references.
Well, my old JCK pattern index shows it as Magnolia, introduced in 1908; Turner shows what appears to be the same pattern with a slightly different shape, IDed as Bridal Flower, introduced in 1910. To my eye, looks more like Easter Lilies!
Good instincts! American Sterling Co. of Naubuc, CT was one of several late 19th-early 20th silverplate manufacturers that used "Sterling" in their company name, but produced only plated wares. Rainwater shows them in business from 1871-80.
There are many variations of Watson's trademarks, the crown-W-lion marks are generally accepted to have been used from 1910 on. Wallace bought Watson in 1955, don't believe they produced any of the Watson souvenir spoons with either Watson or Wallace marks. The souvenir spoon dies were sold to Whiti...
Wow, what a detailed description! Sounds like your maker was Watson & Newell of Attleboro, Mass. Would be a variation on a design patented in 1903 (#D36471), assigned to Watson. Believe the "elf" is actually Punch (minus Judy), and the item that looks like a "P" is perhaps a rattle, nice to have...
Definitely Scandinavian 830/1000 silver, most likely Norwegian, maker will probably be difficult to track down. Most likely dates from late 19th century to well into the early 20th century.
Appears to be the trademark (in use 1908-50) of Sheffield Silver Co. of Brooklyn, NY on their silverplate. The 19/17 7E would be a stock or catalog number.
Swedish silverplate, can't make out the manufacturer, evidently based in Eskilstuna. The "1:ma" is, to the best of my knowledge, an indication of "Prima" quality silverplate (according to one source, indicating at least 20 grams of plating). The "N.S." is for Nysilver, which is plated alpaca, AKA ni...
It's a very sweet piece. Not strong in Russian marks, but it's unclear to me exactly what information you're seeking. If you're asking for more than you already seem to know, pictures of the marks would be necessary, perhaps a drawing if you can't photograph the marks.
Very pretty Scottish thistle souvenir type spoon, I've handled similar pieces with both cairngorm and amethyst stones, some are glass. The marks appear to be Edinburgh 1965/66.