Leavitt Machine Cancel, "Boston Mass.", type X3-2, clear impression ties 1¢ gray blue (206) on 1882 cover sent at the third class rate to Putney Vt., dial without date since third class use; file folds, Fine. Estimate  $150 - 200. This rare experimental Leavitt machine cancel is known used only from September 30 to December 20, 1882. $0 (Image)