Flying scale of Bremen, 2 sheets in one scan, refer to Vol. 113, No. 2, page 58, Aug. 1928 Popular Science Monthly. Designed by J. Danner Bunch and A.F. Koch.
Flying scale of Bremen, 2 sheets in one scan, refer to Vol. 113, No. 2, page 58, Aug. 1928 Popular Science Monthly. Designed by J. Danner Bunch and A.F. Koch.
