BOLIVIA – Bonilla Lara, Alvaro: Bolivia: Cinco Estudios Filatelicos (1972), 82 + 1 pages, softcover; PLUS: Hilchey, Albert W. / Akerman, Clive: The Revenue Stamps of Bolivia (2010), 60 pages, hardcover; PLUS: Hilchey, Albert W.: The Revenue Stamps of Bolivia (October 20, 1968, Revised February 23, 1974), reproduced as a manuscript, 60 pages, in a folder. Estimate: 50 Euro
