Was started in Woburn MA by Q David Bowers and Lee Bellisario in 1987. Q. Bowers is a leading author of Numismatics and is currently in partnership with Stacks of NY.

The mold, slabs and company was eventually sold to PCI, and they used the green holder for a short period before changing to a gold label. Presently, PCI sold out to DCG. Also see, PCI and DGS.
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