Don, I've got two colors of Dykem layout fluid, blue and red, and it's still available anywhere machinists' supplies are sold. Ditto for Prussian Blue paste for checking gear tooth contact patterns and scrape-fitting Babbit bearings.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!