Bidspirit auction | Johann Hendrik van Mastenbroek (1875-1945),

Johann Hendrik van Mastenbroek (1875-1945), The Inner Harbour of Rotterdam - Johann Hendrik van Mastenbroek (1875-1945), The Inner Harbour of Rotterdam Signed 'J.H. van Mastenboek' and dated 'Nov 1938' lower right. Charcoal on paper, c. 20 x 33 cm (frame: 37 x 50 cm).