RA4 Jessop 2.5 l kit

A long forgotten box came to life with unopened bottles of:
Colour developer A
Colour developer B
Colour developer C
Colour developer starter
Bleach
Fix.
Unfortunately the opened box seems not to contain the instructions any longer. Is there any hope that the contents would still work after what I calculate to be at least 15 years and has anybody got the mixing/processing instructions if it's worthwhile.

The bleach is probably OK. The fixer may or may not be. Some parts of the color developer are most likely OK including the starter, but the part with the CD3 in it (the actual developing compound) is the most likely to be dead out of the whole bunch.

Seems possible. I remember using an expired Tetenal kit and the colour developer concentrate (one solution) had a treacle like consistency and was almost black. I had hoped that the colour developer, being 4 separate concentrates, might have withstood a bit better.

Well, it can't hurt to try! But given its age, I wouldn't get my hopes up.