Small folio in an original printed cloth binding. Rebacked. Binding with wear and small losses to extremities. Interior fine with 8 colored models to be folded out with texts/instructions on opposite page: Fiat- Automobil, 3/5 gekuppelte Heissdampf-Schnellzug-Lokomotive, Aeroplan der Brüder Wright, Kombinierte Säge- Hobel- Stem- und Borrmaschine, Dampfturbine (System Brown, Boveri-Parson), Lokomobile der Firma Heinrich Lanz in Mannheim mit Ventilsteuerung System Lentz, Babcock & Wilcox Patent-Wasserrohr-Dampfkessel, 70 pferdiger Diesel-Motor.