1850 - 1864, interesting, old part of a collection, with 24 postage stamps and 3 covers, mostly expertized "ENGEL", partial as usual in somewhat mixed condition, as well but a few superb / superb in every respect (choice copy) - pieces like the Michel no. 3 b, signed "b W. Engel", 17 y, 22 y, both also signed "W. Engel", and a Michel no. 5 on folded letter with blue single circle. From "CELLE / 13 / 8 (1855) " to keepers with on the back, three-line railway cancel (TPO) "MINDEN. / 13 8 V / BERLIN. " for the transport to Minden on the new train line, and single circle cancel "issue. 15 / 8 / No 1".