Not 100% but preferable to replacement non numbered foilcals.
Give your originals a very HARD press between sheets of glass
I mean HARD with wood blocks and "C" clamps
Clean them thoroughly after pressing for a day or two and then shoot them with a light even coat of Testor's "Dull Coat"
The patina will no longer be the final word on accuracy but all the little flaws and imperfections will blend together beautifully to the pint of being invisible; what you'll wind up with is a very presentable pair, perfectly flat and any little dinks and surface imperfections will be GONE
I have done this myself and was very pleased with the results
My pair was so bad this technique was a last resort before giving up and buying the reproductions
Worked out fine