Walter A. Liedtke in The Metropolitan Museum of Art: Notable Acquisitions, 1980–1981. New York, 1981, p. 44, ill., dates it about 1670 and notes the influence of Ter Borch.
Peter C. Sutton in Love Letters: Dutch Genre Paintings in the Age of Vermeer. Exh. cat., National Gallery of Ireland, Dublin. Greenwich, Conn., 2003, pp. 193–95, no. 41, ill. (color), dates it to the early 1670s; relates it to "The Letter Reader" (fig. 1; whereabouts unknown).
Walter Liedtke. Dutch Paintings in The Metropolitan Museum of Art. New York, 2007, vol. 1, pp. 522–23, no. 134, colorpl. 134, agrees with Sutton's [see Ref. 2003] dating to the early 1670s.
Alexandra B. Libby in Human Connections in the Age of Vermeer. Exh. cat., Kyoto Municipal Museum of Art. Tokyo, 2011, pp. 106–8, no. 31, ill. (color).