Here is an example of the type of cutting instruments I love to work on. This is a Wiss #20 industrial shear that was brought in for sharpening. These things were made to last and if given just a minimum of care they can be passed down generation to generation. I would say this shear was made for use as an upholstery shear or for use in some type of shop that had to cut a lot of fabric.
I could not resist cleaning the shears up a bit after they were sharpened. After cleaning and oiling and removing a heavy deposit of rust in the pivot, these shears should be good for a hundred years or so.