Progress is fine, but it's gone on for too long.: CEJ taps
Rectangular Gage Block Set Grade 0 Johansson Slip Block Multi Thickness Type 112 | eBay
Worker is showing gauge blocks. Gauge blocks (also known as gage blocks, Johansson gauges, slip gauges, or Jo blocks) are a system for producing precision lengths. Stock Photo | Adobe Stock
Johansson Gauge Block Set, 1923 - The Henry Ford
Carl Edvard Johansson - Wikipedia
Canadian machinery and metalworking (January-June 1919). EH ELECTRIC Steel Castings High Grade STEEL Castings Of Every Description Prompt Deliveries Send us your drawingsfor estimates. THE ELECTRIC STEEL AND METALSCOMPANY, LIMITED WELLAND