-) You'll find some Agfacolor-principle related developers at the article section under Recipes.
By lack of a "colour film developer" section (on which installment nobody seems to be interested in) they are filed under paper developers...
-) There were many, many color films that were based on that principle (watersoluble color-couplers, made non-diffusing), but not neccessarily shared one developer recipe.
-) There were more than 20 films sharing the name Orwocolor, just for still photography.
-) Bear in mind that aging could have made a more detrimental effect than application of a non-perfect developer. (Though no substantial tests on this matter are known to me.)