BALLOONS, PARAGLIDING & FLYING CLUBS in The Hague, Rotterdam, Leiden, Delft, Gouda, Dordrecht and elsewhere in Zuid-Holland, Netherlands https://www.angloinfo.com/south-holland/directory/south-holland-balloons-paragliding-flying-clubs-241
A London delft blue, green and manganese commemorative plate for the balloon ascent of Vincenzo Lunardi , circa 1785, the ballon depicted ascending above buildings and trees and with a 'V' formation of birds beneath , withina swag border, 35cm diameter Cf. Michael Archer, Delftware ( V. & A. Museum 1997), p. 124 for two examples of similar plates in the collection of the Victoria and Albert Museum, South Kensington.
Nice balloons, but even cooler is that they're placed with a purpose. Willem Besselink organizes data with real-life objects. These represent the amount of visitors to different venues at the Museum het Prinsenhof in Delft.