Certainly they are real - you can touch them and see them . . .
I think you may have meant to ask if the gold on postage stamps is real. First, there is no postage stamp with gold on it . . . you are referring to 22k gold stamps made by people to sell to people who think they are buying something valuable. These are called replica stamps and are nearly worthless because no dealer will buy them.
About 10 dollars
This company produces a variety of products. Their first-day covers are real enough. I think they make gold or gold-plated replicas of certain stamps, which of course, are not real postage stamps. They offer some stamp and coin combinations that contain real US stamps and coins. I think they all sell at a discount of the secondary market.
yes 22-23kt plated
500
Three cents.
What does 985 stamp means on my bracelet
They have almost no real gold, such a thin layer that it would take thousands of them to get a measurable amount.
40-50 Dollars
$250.00 ?
50.00
19-25 Bucks
yes it can. depending on how much the gold weight would be after melted down.