Starrett Set of Four Parallels

Description from the Starrett website: The Starrett Adjustable Parallel provides a wide range of use in layout, gaging, inspection work and for setups on various machine tools. Its adjustable feature makes it possible to adjust it to exact size by micrometer measurement and also permits use in place of several solid-type parallels. The parallel is useful as a gage in checking the size of slots and openings. It is also convenient for use in machine vices, for levelling or adjusting work on setups of milling and grinding machines, shapers, planers, drill presses and for many other applications. The parallel slides smoothly and can be easily adjusted.

These ones have been etched with initials but other than that are in great condition. Refer 3rd picture for sizes.