Canal Zone collection, 1904-1951. Mint and used on album pages, 1904 issues complete with used #1 (with PSE cert.) #3 and minor #2, U.S. overprint set complete, good later issues including the rare #22a imperforate in between (small faults, cat $1,300, PSE cert), #38b & #39c booklet panes unused (with PSE certs), #57 mint, strong 1924-25 definitives, mint airmails, 1st issue dues., etc., nice material with gum toning on some issues throughout, worth inspection. Estimate  $750 - 1,000. $0