Okay, I am going to once again call upon the wisdom of the Estieville community for guidance and information. In my research, I've not been able to find any information about my unopened NOS Esterbrook dip nibs, Assortment #11. As there are 144 points in the box, I'm not sure if I should keep the box sealed and intact or should I crack the thing open and use some of the nibs? I have dip pen nibs, so I'm not in need of them necessarily, but does anyone know where I could find a listing of what WAS Assortment #11 without opening up the box? Should it not be of much value, should I open it and use/sell some of the nibs? This is way out of my league. Thanks for the read.