Photograph Coloring Dyes

Hi all, can anyone provide a good source for film coloring dyes for hand coloring? I've been looking for old Lantern Slide Colouring Dyes but cant find any. Oils are not difficult to find but I'm looking specifically for dyes. Thanks.

Fotospeed do a boxed set - DY15 - I see that it is listed on the B&H web site.. These are water soluble analine dyes according to the MSDS sheet.

Thank you. I didnt see these when I searched B&H before. Just placed the order, should be here in a few weeks (special order). Thanks again!