Piloni, Luigi: Bibliografia della Posta e Filatelia Italiane (1959), 396 pages, pages not yet cut, softcover, good condition; – PLUS: Michael, John: British Empire Stamp Auction Catalogues for Provenance 1921–2002 (2003), 59 pages, softcover, limited and numbered edition of 300 copies, this is No. 116/300. Good condition. Estimate: 50 Euro
