Pastel painting "Portrait of my forefather" 1840 by Theodore Nachtsleim

Interesting painting (fusain, blood and white chalk) old (dated back "around 1840") and signed "portrait of the father of my maternal grandfather" painted by theodore nachtsleim "musicians and manufacturer of pianos". The work is made on paper (reinforced on hard cardboard) and has some folds and pin holes on the extreme edges. Protected by plastic film (to be replaced by a glass when framing) View size: 30 / 38 cm.