Hans Hoffmann. Balance v3, n4 1957, 13 Hans Hoffmann. Balance v3, n4 1957, 13 Robert Hamilton. Balance v1, n3 1955, 11 Paul Nelson. Balance v1, n2 1955, 14 M. E. H. Rotival. Balance v1, n3 1955, 12 Herbert A Tessler, Leon Moed, Joseph DAmelio and William H. Liskman. Balance v1, n2 1955, 6 Leon Haft. Balance v1, n3 1955, 8