I purchased a similar Wollensak 8x10 wide angle lens recently for around $25, which I considered a steal, and have seen others sell for around $60-$80. It all depends on what the market will bear at the time you're selling it, of course.
Page 32 of http://www.cameraeccentric.com/html/info/korona_1.html shows it going for $35 in 1900. I wouldn't give $10 for it in its current condition but cleaned and if the glass is in good condition it could be worth $100 or more.
i had a 58mm unmarked stoltz stop/brass lens years ago
i used it carefree on a speed graphic ( maybe it was a tad longer than 58mm ? )
not sure what kind of lens it was but it looked kind of like yours ...
it didn't have any dings or dust, and i sold it for about 300$
good luck selling yours !
john