Seems that these popular images translated into commercially successful model for early 19th century potters, and several had a go at fashioning them. John Walton even made two versions of the Flight and Return: one pair sport bocages, the other have spill vases instead. Walton actually titled his figures, which is a nice touch. See my book for an example.
Despite the popularity of these figures in their time, today it is quite difficult to find an attractive pair in good nick. Again, I would not mid owning a fine example of either the Flight or Return, unpaired. Either one stands very well on its own.
Additional Factoids:
My book can be purchased from leading ceramics dealers Nick Burton, Andrew Dando, John Howard, Elinor Penna, Sampson Horne.
Reference Works stocks the book for European distribution. www.referenceworks.co.uk
In the US and Canada, order at www.hotlanepress.com. Signed copies available on request.
Amazon has copies in stock.