Is it pewter?

I was in a thrift store yesterday and picked up a big platter. On the back it was stamped RWP with Wilton below it. Is it pewter?

Does it scratch easily with a key?

There is such a thing as RWP Wilton pewter. Do a quick search on line. Wilton does use other metals to make their products.

Tin will "Cry" when you bend it. If it is Pewter and is mostly Tin, it should Cry.

Don’t use a key, a fingernail will scratch pewter

RWP or Wilton, that is usually aluminum! Tap it, it should “ring”, true pewter has a “dead” ring to it. Just my experience

If it's Alum.-- that happened to me too.
I found a big round platter for 25 cents and thought I'd struck gold.
Upon further inspection---- Defeat was snatched from the jaws of victory!

No, RWP don’t make pewter items. It’s a bunch of alloys mixed. If you saved your receipt may they will give you a credit for future purchases. My good will’s do that here. I remember that was one of the first items I bought when I was buying pewter and didn’t know what I was doing. You can take a good handheld butane torch and hold it on there forever and it won’t melt.lol. If it doesn’t say pewter on it I don’t buy it. And if it’s not dinnerware items I don’t buy it. Picture frames and knickknacks are mostly lead.

The first post in the sticky thread says Wilton items aren’t pewter.

RWP means Real Wilton Pewter which IS NOT REAL PEWTER.

If you bought that platter, then just chalk one up to experience.

And you might check it for the following, which will help save you the next time from unmarked Wilton-like goods made from similar stuff:

Thicker, much more rigid, and considerably lighter for the amount of metal used than real pewter ware. The gray color doesn’t quite match that of pewter, and it doesn’t warm up in the hand like tin does.

Harder (real pewter scratches more easily), no tin cry (though this is hard to test since the aluminum is so stiff), and won’t melt at temps or in flames that would do in tin (though this is a post purchase test; like Tripplebeards said, some folks run a butane torch over one spot - if it melts they keep it, if not some return it - never done this myself).

Wilton and other aluminum based pseudo pewter often has pits and porosities as well as a visible casting line that pewter metal doesn’t have in the first two cases, and, in the third case, would have polished out if cast (much pewter ware is formed by lathe turning and shaping). That’s because while pewter used to be common, now it’s a mostly a premium material used in high value goods that need to be finished to a high standard, in contrast to the Wilton ware that caters to those who want to approximate the look of the real thing without paying for the material or workmanship.

ETA: the other big offenders are those “Give us this day our daily bread” platters.

Wilton is a known maker of "Pewteral", an aluminum alloy with no tin component. Let me guess, it is thick, and you will find a kind of orange peel appearing surface where it is not smooth.
My guess, NOT pewter.