I have 4 McIntosh ML-1C speakers that are brand new in box. New Old Stock. But from age of 45 yrs old, the foam surrounds have deteriorated. These came from the very end of the 7 year run of this model. The serial numbers are BL9817 thru 9820 out of a possible 9999. But no one knows if they even made them to 9999. More @Wikipedia
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