Bleistift, Spuren von schwarzer Kreide ["156mm x 115mm (Blatt)"] 1921-16
Feder in Schwarz ["191mm x 272mm (Blatt)"] 23876z-V
Feder in Schwarz ["187mm x 272mm (Blatt)"] 23876y
Feder in Schwarz ["187mm x 270mm (Blatt)"] 23876z-III