Finally after much thought and consulting of my wood finishing experts Flexner and Jewitt plus a lot of time experimenting with solvent based wood dye coloring I have achieved the best match I am able to produce for the walnut repair piece and the original Parker forend wood. My watercolor book, 600 Watercolors, by Sharon Finmark helped to get the right mix of yellow-red-brown to create the orange-brown color of the aged walnut. Next step is to begin the shellac finish application. And then on to what started this project... Recutting the checkering.