A Gothic brick building and two studies of trees

Caspar David Friedrich (Greifswald 1774-1840 Dresden) A Gothic brick building and two studies of trees inscribed ‘den 18t Aprill/ 1809/ Greifswald’ and ‘Breesen/ den 14t Juni/ 1809’ and ‘den 14t Juni’ and with number ’37.’ (recto) and with illegible trimmed inscription (verso) graphite, grey and brown wash 12 1/8 x 9 7/8 in. (30.9 x 25.2 cm)