I went to clean my Green Half-Coronet and the tip fell off the end. Looking at the pieces, I realized the celluloid had started to crystallize and decompose while stored in the converted cigar box. I have since isolated the pen and started researching the best methods to store celluloid pens. I have a Vacumatic Green/Brown Candy Stripe stored in a converted cigar box. Looking at the clear tip of the cap, I noticed slight crazing at the jewel threads (besides the usual shrinkage). Does any have any suggestions on the best method to store this pen to prevent or slow down crystallization? I am looking into buying zeolite paper to help absorb any gases. What is the best method to store pens? Any advice or recommendations are greatly appreciated