LP collection

You mention "early 50's" - it would be helpful to know how early (or late), and what labels you have. Are they actually all mono, or do you have some early stereo records (which would take you into the later 50's)?

Overall, I think Elizabeth offers some excellent advice. If it were me, I would go through your collection and pick whatever records you think are worth the most. Just put a few on ebay and see what happens. Use the results to help figure out how best to sell the rest of them.

If I were you, I would at least take some time to educate yourself on which of those records that you have may be very valuable - you could indeed have some real gems in there. If you just want to get rid of all of them quick, then Elizabeth's advice is good. However, if you really do have some that are worth quite a bit, you will want to sell those individually for sure. Also, bear in mind that most classical music lovers usually tend to like buy things individually, and will often pass on bidding on a big group of things. You will certainly make more money on them in the long run if you sell them individually, though this is a great deal of extra work.