Is it pewter?

[fiver]

put the torch to it.

 

[Rally]

Sounded like pewter to me also, and the solid bottom makes it sound different than a beer mug with a glass bottom. Most items though that were used in food service were required to have proof marks on them. Some are quite shallow or even inside so maybe look again. I have even seen a proof mark on the handle of a small cup from Israel.

This one sounds like yours but has a hallmark from Milaysia, also note the handles have been soldered on, which like Fiver mentioned is most common.

 

[glassparman]

That looks as shiny as mine Rally. I'll look closer but nothing on the bottom that I could see.

 

[Rally]

The more intricate the piece, the more likely the hallmark is likely to be hidden. Some of the Israeli stuff is really nice, almost too pretty to melt, almost!

 

[fiver]

some of the older stuff isn't marked, and much of it doesn't have a very high tin content either.
i don't remember when the 'standard' was set as to how much tin something called pewter had to have [above 85% airc] around 1900 ish +/-25years? comes to mind.