20 Perfect Masons + ~ Help

[crobinson]

Uhh, as a 3rd genereation homeowner, who just cleaned out her basement, I have a delima. I have discovered 20 blue/green Perfect Masons (7 w/screw on lids), 5 sure seals, and 6 ideals . I found hundreds of other miscellaneous ball, kerr, masons that I sold today, but hung onto the blue/greens (my mother-in-law said they were worth some bucks). My delima is that I do not know if I should hang on to them, or try to sell them. I had several people beg for them today, but I did not want to sell them until I knew what they could be worth. Can anyone help this virgin jar holder?