A tour-de-force that explores the fascinating design world of the Dopyera Brothers and the instruments they produced from 1923 to 1993. Featuring over 1100 graphic illustrations of musical instruments and amplifiers, and more than 100 artists who used them, this is the definitive collection of the various developments, designs, colors and engraving patterns of everything produced by the Dopyera Brothers in their various companies - National, Dobro, Supro, Valco, Mosrite, Regal and OMI. Arranged from the earliest National Banjos and Triplates, Duolians, Style 0s, wood bodied Nationals, through Dobros both wood and metal, jazz style acoustics, electrics, solid bodies, Resoglas and the last Valco guitars of 1968. There are sections of instruments covering the Gardena period, Mosrite, and OMI both in Long Beach and Huntington Beach. Plus sections on Lap Steels and Consoles from 1935 to 1968, and a large section of amplifiers from the 1930s to the 1960s (National, Supro and Trade House variants). The book concludes with 36 pages of serial numbers and various data for National, Dobro, OMI, and a large cross section of recently discovered Valco instruments. Hardcover. 12" x 10.5" x 1.5" thick, 423 pp.