Probably Count Axel von Fersen (1755-1810)
Miniature. Gouache on bone 3.9 x 3.1 cm. Set in 18 carats gold frame, 4.5 x 3.7 cm. Attached on a larger oval frame 21.5 x 16.5 cm.
Lennart Wasling (ed), "Från Borås och de sju häraderna", 2007, compare miniature in the Chapter about Hall.
Regine de Plinval de Guillebon, "Pierre Adolph Hall", 2000, compare cat no 68 (in colour 92) where resemblance in portraits can be compared (also by Hall depicting Axel von Fersen from 1791).
Certificate by Ph.D Karl Asplund included. The certificate states that the painting is created by Peter Adolf Hall.