I recently bought from an antiques dealer a number if fountain pens, all modern, and nearly a dozen old Sheaffer ink bottles. Most of the bottles are (I judge) from the early 50s and almost all contained only dust, including the PERSIAN ROSE. Now I know why it is sought after. I poured distilled water in the dust and shook up the bottles to mis it. In most every case there remained little 'bits' or specks of a substance that I took to be undissolved ink dust. How much distilled water did I use? Enough to make a liquid. The Persian Rose is very dark so I suspect I need to add more water. Anyone have any tips on how to bring ink dust to life that I can use? Thanks