Unknown Sterling Hallmark? Need Help Identifying

[modowannab]

I need some help identifying the maker. It looks like an N with an anchor going through it and possibly a flag or bird at the top. Thanks in advance for your help

http://img864.imageshack.us/i/img8181q.jpg/" onclick="window.open(this.href);return false;
http://img140.imageshack.us/i/img8185b.jpg/" onclick="window.open(this.href);return false;
http://img200.imageshack.us/i/img8191g.jpg/" onclick="window.open(this.href);return false;

[2209patrick]

Hello.

William Nost, New York City.
Active, at least, in the first quarter of the 20th century.



Pat.