Clive, I have two Gnass 8x10 holder sleeves, each of which holds three film holders. I'd like to sell them, as I don't use 8x10 any longer. I have the two sleeves and six almost new holders. $350 plus shipping? Trade for??? Photomark in Phoenix carries the Gnass products (nice lens carriers, BTW). I'll see if I can get contact info from them for you. Karl Wolz