Originally invented by Kodak, described in Kodak Chemicals Formulae Handbook from 1949, made on request by BromideOxides Studios.
Bottled in lightproof, oxygen free tank. Size 1 or 5 litre.
Working solution: 1:3 dilution
According to Kodak Chemicals Formulae Handbook expiration time for unused, not diluted developer is 3 month if stored in full, closed bottle. Good way to extend expiration time is to use a lighter gas injected into bottle to replace oxygen in it.
Developer described at Kodak D166 developer, solution for smoky vintage analog photographic papers