Brown & Sharpe 01699123 Value line Magnetic Base, Stand, Indicator Holder, 6.9" x 6.5" Overall Length,0.32" Rod Diameter, On/Off Switch for Magnet: Amazon.com: Industrial & Scientific
Federal Dial Indicator .0001 Inch Graduation Used Vintage Large | eBay
DWYER, 3/4 in Pipe Size, 4 in Overall Lg, Window Sight Flow Indicator with Impeller - 21XL62|SFI-100-3/4 - Grainger