They have almost no real gold, such a thin layer that it would take thousands of them to get a measurable amount.
Barely, probably the face value of the stamp.
Not much. You can buy them for a dollar or two each on eBay. The gold value is negligible, it takes thousands of them to get a measurable amount of gold. You could probably get more gold processing sea water then from these things.
Not cost effectively. It would cost you more to buy the covers and remove the gold than you could earn from the amount of gold in them. It is almost nothing, an atom thick layer on a piece of foil.
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.
The gold value is so small that it can't be measured. It is a layer an atom or two thick on aluminum. There is little extra value to these replicas and stamp collectors typically do not want them in their collections.
In 1980, the United States Postal Service issued a series of golden replicas of popular U.S. stamps as part of a promotional effort. These replicas were intended for collectors and featured iconic designs from American philately. While they were not valid for postage, they captured the essence of the original stamps and became sought-after items among stamp enthusiasts.
Oh, what a delightful treasure you have! You can display those golden replicas of US stamps in a beautiful frame or shadow box to showcase their unique beauty. They would make a lovely addition to your home decor, sparking joy and conversation for all who see them. Remember, there are no mistakes, just happy little accidents in how you choose to enjoy and share these special pieces.
$1.50 (Scott Specialized Catalog of US Stamps 2011, page 405(First Day Covers))
7-15-11>>> The US has never made a gold coin with the denomination of less than one dollar. Most are modern replicas and have no numismatic value.
Ebay or other auctions. But don't waste your money. They are worth almost nothing. These replicas have a layer of gold on the foil that is an atom or two thick. It is not really measurable and it would take thousands of them to make an amount worth anything. You might be able to get a $1 or two.
Stamps of gold are generally just replica stamps that are coated with a very thin layer of gold foil. They are manufactured by private companies, not the US government, so they are not limited edition. Generally speaking they are not worth much in terms of gold weight or collectibility/rarity.
What is the current cost of a stamp on a first class letter under an ounce mailed in the US? <><><> 44 cents