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I'm not sure it would be possible, but if it were possible, it shouldn't be too hard. You need to cross a blue to a partridge and then take the offspring back to the partridge to get the penciling back. The question is whether or not the blue gene would indeed affect only the black part of the feather and leave the mahogany center parts. Also, in using a blue, you would have a difficult time with the "Black" gene that would cover everything up on the first generation. Maybe a 3-4 year project to see if it could be done and a few more years to get any quality back of lacing.
The Blue partridge if breed for the male is not too bad and is done in many other breeds. The problem is in the female pattern, it almost always lost and getting it back is a very rough road. There are very few good examples of Blue / red partridge patterned females.