Schwarzer Stift ["192mm x 253mm (Blatt)"] 1915-574
Schwarzer Stift ["313mm x 250mm (Blatt)"] 1916-443
Gouache ["165mm x 228mm (Blatt)"] 2022-63
Bleistift, Aquarell ["455mm x 480mm (Blatt)"] 1977-174