Cristobal, C.Z., registry label with "14994" number on 1906 registered cover from Matachin, Canal Zone to Silver City, N.M. bearing Canal Zone five-color franking (12, 13, 16, 17, 19) tied by 7-bar cancels, matching sharp "Matachin Oct 31, 1906" registry cds, reverse with purple Cristobal (11.1) and New York (11.9) transits, Extremely Fine, Census No. CZ-10. Scott Nos. FX-CZ1; $500  Estimate $400 - 600. $0 (Image)

Cristobal, C.Z., registry label with "16337" number on 1906 registered cover from La Boca, Canal Zone to New York N.Y. bearing 10c yellow (13) and 2c on 1p (17b) tied by "Canal Zone" bar cancel, purple "La Boca, Canal Zone, Registered, Nov 16 1906" oval postmark; reverse with purple Cristobal (11.17) cds and magenta New York (11.24) arrival datestamp, Very Fine, Census No. CZ-67. Scott Nos. FX-CZ1; $500  Estimate $300 - 400. $0 (Image)

Cristobal, C.Z., blue simulated registry label handstamp on 1905 registered Isthmian Canal Commission cover from Pedro Miguel, Canal Zone to Buffalo N.Y. bearing 1c green (9) pair and 10c yellow (13) tied by "Pedro Miguel, Canal Zone, Dec 20 1905" cds and bars cancel, blue Cristobal (12.20) cds, New York (1.1) and Buffalo (1.2) backstamps; stamp flaws, F.-V.F. Scott Nos. FX-CZ var.  Estimate $200 - 300. The simulated registry handstamps were introduced at Cristobal in 1905 and were in use for only a short time period. $0 (Image)

Cristobal, C.Z., blue simulated registry label handstamp on 1905 registered cover from Empire, Canal Zone to Plymouth Conn. bearing 10c yellow (13), top s.e., tied by two strikes of "Empire, Canal Zone, Dec 26 1905" cds blue Cristobal (12.26) cds, New York (1.4) backstamp; some flaws, F.-V.F. Scott Nos. FX-CZ var.  Estimate $150 - 200. $0 (Image)