Jiffy Jet washer bag question?

IIRC Mopar used the Jiffy washer bag from the mid/late 50's up through late 64 and in some cases to use up stocks, early 65's. I had a 65 Coronet that was a early August or Sep build and had the bracket for the bag. I gave up on finding one and swapped in the plastic tank. They might be reproducing them now - I'll ask a friend who is into 59 Plymouths.