Johann-Christian-Jacob Friedrich 1746-1813. German School 18th.Century. Charming pair of Watercolour studies of a Goldfinch and a Coal-Tit. Presented in their original carved giltwood frames. Executed on laid paper. Artists label to reverse of frames with signatures and dated 1775. 13 by 16.8 cms image. 17.5 by 21.4 cms. In frames.