My son brought me a silver spoon and asked me to identify the material.
It weighed 23.1 gm dry, and 20.5 gm submerged in water.
The markings were "International Silver Co" and DAL
and we supposed that this was part of an airline setting for the
first class service. The density is on the borderline for
cupronickel or Britannia metal or German silver I suppose.
I know that a "metallometer" would identify the constituents,
but I don't have one.
I do have a Star project spectrometer, and various power supplies,
so that I could sustain a spark to the spoon.
I wonder if I could distinguish copper, tin, zinc, lead, nickel
or bismuth in this way? Perhaps there are easy chemical color tests?