I have a large collection of Carnegie Hall programs from the years 1900 to 1940's. They are all in good condition. What is the best way to find out their value and market them. Thanks so much for your...

I have a match box from the original Club at the World Trade Center. It's in good condition; has all matches intact; some light wear to outside of box, but overall good. Any ideas?

l have a Garden Concert Programme from April 12, 1913, honoring Andrew Carnegie's 25th year as President of the New York City Oratorio Society. It is signed by Andrew Carnegie, Louise W. Carnegie (his...