Johann Gottlob Topfer. Atlas Zum Lehrbuch Der Orgelbaukust. c1855. Bound without the printed wraps and without any printed leaves; presumably lacking at least a title leaf. Folio. Later 1/4 black leather and marbled board. Edges of covers chipped corners of covers frayed. Hinges repaired. Endpapers are later than the binding. Foxed uniform light toning. Plates usually have pencil number at upper corner. 130 plates (I-CXXX a few plates double-page. 1 double-page plate is numbered Taf XXIXu.-XXX but the other double-page plates have only 1 plate number.) Plates mostly show diagrams on parts and assembly of a larch church organ.