Balsa Triangle 1/4 x 1/4 x 36" 1921
Balsa Triangle 3/8 x 3/8 x 36" 1923
Balsa Triangle 1/2 x 1/2 x 36" 1925
Balsa Triangle 3/4 x 3/4 x 36" 1927
Balsa Triangle 1 x 1 x 36" 1929
