PANAMA / CANAL ZONE – Brid, Federico A.: The Stamps of Panama 1878–2007 (2008), 150 pages, hardcover; PLUS: Plass, Gilbert N. / Brewster, Geoffrey / Salz, Richard H.: Canal Zone Stamps (1986), 345 pages, hardcover, rare!; PLUS: Ross, Joe / Brid, Federico: Panama. Revenues / Papel Sellado 1821–1975 (2008), 60 + 27 pages, softcover; PLUS: Langlais, Louis-Eugène: Compagnies du Canal de Panama. Organisations Postales 1881–1903 (2022), 129 pages, softcover. All titles in good condition. Estimate: 150 Euro
