I have a small table on a watchmaker's jewelling press.
… The shiny plating is bubbling and peeling 
.

…. Please excuse the ‘moody’ lighting
Horological tools are commonly Nickel plated, but this looks [perhaps] more like Chromium plate.
I would be interested to know which it is; but have not yet found a simple, economical, test for either or both metals.
Can anyone advise, please ?
MichaelG.