In article ,
Ignoramus4705 wrote:

I bought seven grey colored, cast metal drinking cups with handles. I
suspect that they may be pewter, but I am not sure. What is the
easiest way to recognize pewter?

They have a cast mark on the bottom, like FTR or HTR.

thanks

i

By softness, color and density.

There are chemical tests, but these are not commonly available.

Joe Gwinn