Very limited quantities. A slightly larger Kapton Foil in this same presentation was recently auctioned for $4,000!
This Flown Apollo 11 Kapton Foil is a generous sized, 1/2" x 1/2". It was removed from the heat shield after spashdown by O.W. Nasse in August 1969. He was one of a dozen or more veteran Rockwell Space Division workers assigned to Apollo 11's post landing and safety recovery team. This is certified by Ken L. Havekotte.