A Florida widow is demanding a Manhattan auction house return her husband’s $2 million stamp collection after nearly a decade — and believes some of the precious postage might now be missing. The prized collection was amassed by Stanley Marks, who first started trading stamps in 1937 when he was just 10. The lawyer, who became a member of the New York Stock Exchange in the 1950s, turned a childhood hobby into a passion until his death in 2016 at age 89, when the collection was turned over to