Lefevre-Pontalis, Pierre, Notes sur les amulettes siamoises, Paris, 1926, 45 pages, 26 plates, softcover, published by Librairie orientaliste Paul Geuthner, Annales du Musée Guimet. Bibliothèque de vulgarisation, volume 45, very interesting small work on early Thai amulets, difficult to find book.
Estimate: 30-50 USD