17.8 × 19.4 cm irreg. (image) 26.5 × 20.2 cm irreg. (sheet)
Inscription
inscribed in pencil: (various dimensions) inscribed in pencil and blue ballpoint pen on reverse u.l.: 2. shape of front rail and sections / shape of side members and sections / Layout of side members / angle of housing X (all crossed through except 2.) / 2 shapes of top rail and sections. (shapes of top rail and sections. crossed through) / length of middle rail. / outside front legs vertical / layout of real (...illeg.) (outside front legs vertical / layout of real (...illeg.) crossed through)
