拍品专文
The balloon derives from Charles and Robert's hydrogen balloon, launched in 1783. The Prince of Wales from the engraving by J.R. Smith, 1783, after a painting by Thomas Gainsborough. The Princesses Charlotte, Augusta and Elizabeth from an engraving by Thomas Watson, 1776, from the painting of "The Three Montgomery Sisters Decorating a Terminal Figure of Hymen", by Joshua Reynolds.