I've decided that I agree with some discussion 
that took place here a couple of weeks ago, to 
the effect that it's a good idea to ship cels 
(especially expensive cels) in a "Rinkya Box".  
I've consolidating my collection via eBay sales, 
so the issue is not merely academic.

Unfortunately, my supply of boxes from past 
Rinkya shipments is finite.  These boxes are also 
known as "B4 File Cases", but a web search did 
not turn up any apparent suppliers of them.

Anyone know where to get B4 File Cases so that I 
can ship cels in them in the future?

Thanks!