This is a Startlett Dial Indication No. Has a vertical lug back. The face is 3 1/2 inches. The item "Starrett Dial Indicator No. 656-517 (30822)" is in sale since Friday, December 22, 2017.This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Inspection & Measurement\Indicators". The seller is "thecherrychic" and is located in Cerulean, Kentucky. This item can be shipped worldwide.