 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of Collectors Universe, Inc. NASDAQ: CLCT to an investor group led by entrepreneur and sports card collector Nat Turner, D1 Capital Partners L.P., and Cohen Private Ventures, LLC the Investor Group for 75.25 per share in cash is fair to Collectors Universe shareholders. Halper Sadeh encourages Collectors Universe shareholders to click here to learn more about their legal righ 