Small dull black photo of the Bendigo City Road Roller No 1. Name written on the back.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo city road roller no 1

Black and white photo showing: 1. Carbon removed from the exhaust stack of the semi diesel engine of the Bendigo City Council road roller. 2. Section of exhaust stack before being cleaned out. 3. Piece of carbon taken from Victorian locomotive cylinder and 4 Samples of scale scabs taken from the cylinder of the diesel engines at the Little 180 Gold Mining Coy. Vincent Kelly Bendigo impressed in the bottom left corner. Information typed on the back of the photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo city council, little 180 gold mining coy bendigo, vincent kelly