I inherited some fountain pens. Where in NY city can I go to get them appraised? How should I sell them?

There are 12 pens in all. 2 are Mont Blanc Meisterstruk pens, and the other 10 are Waterman. They are probably about 30-40 years old. I don't know anything about pens to comment on their condition, the outsides look fine to me. I can take pics and link if necessary. Might they be worth anything?