Jed, you have a FINE scale there! I have had one for years=very accurate. The only difference between yours+mine is that the "0" with ^ on yours is not on mine-I just have a center mark+small "hash" marks above+below the center mark. Mine was bought in '76' or '77' and still works GREAT.
A couple of hints on your scale:
1. Be SURE to have the scale pan on the pan holder before you try to balance(center the beam)==Ask me how I know that
2.Try to keep it covered, or at least in a cabinet-to keep dirt+fall-out off of it,especially off of the pivot pins+roller bushings.
3. Your scale has "Magnetic Dampening", meaning that there is a copper disc that goes between two magnets (Just behind the left side pointer). With this in mind, keep all/any power supplies,tools, metal objects, or anything else, away from the left side of your scale. The "Dampening" slows down the bouncing of the beam when it is tyring to center.
4. Keep around a good "Premium" 50gr. bullet to check the calibration of your scale. I use a .224" Hornady 50gr, V-Max. or the same in a Sierra bullet. Most of those are as accurate as a test weight.
Enjoy your scale+have FUN hand loading...Bill..