Willy Sluiter, 1915 - 1920, poster, RP-P-1920-2828
Willy Sluiter, c. 1916, poster, RP-P-1923-78
Willy Sluiter, 1914, poster, RP-P-1914-5108
Willy Sluiter, 1916, poster, RP-P-1916-498
Willy Sluiter, 1917, poster, RP-P-1917-1089
Willy Sluiter, c. 1920, poster, RP-P-1923-81
Willy Sluiter, 1915, poster, RP-P-1915-1563
Willy Sluiter, c. 1917, poster, RP-P-1918-2299
Willy Sluiter, c. 1916, poster, RP-P-1923-80
Willy Sluiter, 1914, poster, RP-P-1916-500
