Thanks for the clarification on models EuGene. I guess that my no 1 is a D version. It has doors. For dyeing leather I have used Feibings (sp?) black leather dye. It does come in other colors. It seems to work pretty well for touching up scuffs on leather coverings of Graphlexes, folders, etc. It does a good on the finger tips as well. I'm not sure of how well it seals. I found it at a shoe repair shop.