Discorso di M. Filippo Pigafetta d'intorno all'historia della aguglia, et alla ragione del muoverla
Publisher: Appresso Bartolomeo Grassi
Published: 1586
Place of publication: In Roma
Language: ita
Number of pages: 36
Subjects: Obelisks; Rome (Italy). Obelisco vaticano; Rome (Italy)
Notes: Printer's device on t.p.

Aguglia is more often written guglia and refers to the Vatican obelisk.

Schudt, L.  Le guide di Roma, Vienna, 1930, no. 1123