Comment: It looks like the headjoint will have a stamp that will say something like, "Artley USA 18-0" or "Artley Artist Elkhart, IND." That's a little important for value. Unless you dropped a couple digits in the serial number -- and I hear Artley serial numbers can be odd -- you're looking at about 1958 for a manufacture date
The highest sold ad on eBay for ANY Artley sterling flute was $180. Again, that's across ALL Artley flutes sold on eBay. The US sold listings are generally no more than two months old. YMMV in different countries. However, these are mostly newer Artley flutes. A 1958 one with a sterling headjoint and body is closer to the $500 value range (see this and this), especially if it has the "Elkhart" stamp. "Nogales" stamp, closer to that $180 range. Of course, that's also talking about "playable condition." You're going to want to take off $ for value depending on the repairs needed.