Reminiscent in style and costume to pictures by Bartholomeus van der Helst in the Rijksmuseum, Amsterdam, dated 1639 and 1648 (inv. nos. C375 and C2), P.J.J. van Thiel (ed.), All the Paintings of the Rijksmuseum Amsterdam, Amsterdam/Maarssen, 1976, pp. 267-7. For further information on civic guard portraits, see M. Carasso-Kok, J. Levy-van Halm, Schutters in Holland, Kracht en Zenuwen van de Stad, exhib. cat., Zwolle/Haarlem, 1988