There is an important article written by Linda Sayce and Ivo Magherini: L'arciliuto a Roma nel XVII e XVIII secolo, in: Leutaro in Roma, Roma 2007 ISBN 978-88-7575-092-3
Martino Harz, Roma 1665 (Edinburgh): 6x2 = 67.3 (neck shortened and perhaps not original, but 18th century, originally > 71cm) / 8x1 = 143.8 cm; "43 doghe di tasso bicolore" (yew?) Martino Harz, Roma 1665 (Geneva): 1x1 + 5x2 = 73 cm / 8x1 = 155 cm; yew (This instrument is not listed in this article, but I was with Ivo in Geneva to prepare it for an exhibition in Zurich in 2008. It is depicted in my book "The Lute in Europe 2", Menziken 2011, p. 144, ISBN 978-3-9523232-1-2) Antonio Giauna, Roma 1694 or 1704 (?) (Rome): 6x2 = 71.4 cm, / 8x1 = 159.4; 27 ribs of cypress Cinzio Rotondi, Roma 1699 (Edinburgh): 6x2 = 73 cm / 8x1 = 162 cm; 25 ribs Josef de Carnitis / Cinzio Rotondi, Roma 1705 (Milano): 6x2 = 72.7 cm / 8x1 = 154.1 cm; 25 ribs of "Palisander" (rosewood?) (depicted in the paper of Linda & Ivo p.33) David Tecchler, Roma 1725 (New York): 6x2 = 71.1 cm / 8x1 = 155.5 cm; 15 ribs of ebony It seems to me that the Roman archlute has the cross section in form of a real half cercle. Andreas To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html