For harp., Cover title., International Harp Archives., Zingel, Harp., Pratt Harp Collection., BYU vol. 1-2, copies 2 include extensive pencil and red pen annotations., BYU vol. 1, copy 3 has red t.p. lettering and "Chaque, prix net (maj. comprise): 10 fr."--T.p., and BYU vol. 1, copy 4 has signature of Alberto Salvi on cover.