Top row:
1935 00-40H, Non-Martin Bruno, 1933 O-18HK, 1935 T-17 Tiple, 1945 T-28 Tiple, 1980 E-28, 1979 EM-18

Middle row:
1946 000-18, Non-Martin Unknown with "Tilton's Improvement," 1928 O-28HK,
1891 Style 1-26, 1874 Style 1-21, 1889 O-28, 1954 D-18

Bottom row:
Non-Martin Washburn 1115, Non-Martin Washburn, 1927 Style 2-17H, 1935 R-17, 1934 R-18, 1965 F-55, 1959 D-28E