Variants, also on panel and of similar size, are in the Museo Cagnola at Gazzada and in a Venetian private collection (see A. Morassi, Guardi, Venice, 1973, I, p. 471, nos. 866-7; II, figs. 785-6, and, for the latter, also the catalogue of the exhibition Francesco Guardi: Vedute Capricci Feste, Fondazione Giorgio Cini, 28 Aug.-21 Nov. 1993, pp. 148-9, no. 50, illustrated in colour).
For the Mildmay Collection, see the note before lot 19.