The Reed vises were a gloss or semi-gloss black until sometime in the early 1950's, when the standard colour was changed to a medium grey.
If you carefully strip or sand down the existing re-paint on your vise, you should find original black or grey paint.
The cast lettering was commonly tipped with either white or stove aluminium on vises of the 'black paint' era, and with white on the later grey-painted ones.
cheers
Carla