Four-Rings, clear strike ties 6¢ carmine on orange 1873 cover to London, England, red "New York Feb 28" exchange cds and red "London N.W. MR 11 73" arrival; edge tear at top, Fine and extremely rare, ex-Skinner. Scott No. 148. Weiss No. TR-T1  Estimate $500 - 750. Weiss records only a partial single cover (reduced and trimmed) that currently resides in the Kirke exhibit collection. This cover here confirms the cancellation type. $0 (Image)