In the background are two tractors, the one on the left being mostly obscured. Each tractor is connected by a belt to a separate De Prony Brake Dynamometer in the foreground. From a scanned print in the University of Nebraska–Lincoln Digital Collections, wherein the right-hand tractor is identified as an IHC Tractor.

Date/Date Range: 1910
Keyword(s)--Subject: IHC tractors; Dynamometer
Original Size: 20x25cm
Original Format: Black/White Print
Digital Object Identifier: 333
RG Number/MS Number: RG 08/07/11
Collection Title: Lester F. Larsen Tractor Test and Power Museum, Records
Collection Creator: Lester F. Larsen Tractor Test and Power Museum
Collection Collector: Lester F. Larsen Tractor Test and Power Museum