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ANSWER: What you have aren’t coins but tokens. Like the famous wooden nickels, merchants used tokens as a way to promote their businesses and some commemorated events. By 1900, tokens had become a common type of coinage by which merchants not only advertised, but created good will and repeat business. The token was in effect a pledge redeemable in goods but not necessarily for currency.
Tokens are coin-like objects used instead of coins and either have a denomination shown or implied by size, color or shape. The use of tokens dates back to Roman times. Back then, the Romans used coin-like objects called spintria to gain entrance to brothels and gaming establishments.
Medieval English monasteries issued tokens to pay for services from outsiders. Residents of nearby villages called these tokens "Abbot's money."
Though token manufacturers usually made them of cheaper metals, such as copper, pewter, aluminum, brass, and tin, they also used fiber, bakelite, leather, porcelain, and wood.
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In July, 1836 Congress enacted President Andrew Jackson's "specie circular" law, requiring specie—that is, gold or silver—to be used to pay for government land. This caused people to believe that paper currency, at the time issued by state banks, was unsound. As more and more people began using specie, regular coins disappeared from circulation.
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The Hard Times tokens of the 1830s and 1840s continued to make merchant tokens popular. During the Civil War, tokens again came into wide use because of the coin shortages caused by it. After the war, merchants once again issued tokens and people continued to use these “good fors” to trade for goods.
Among the many tokens made in imitation of the coins driven from circulation were a number using the phrase, "Millions for Defense, but Not One Cent for Tribute." These tokens bore the familiar Liberty Head and on the reverse the wording was strategically placed to have an enlarged ONE CENT appear as it would on government issued coins. The phrase, "Millions for Defense, but Not One Cent for Tribute," was a rallying cry for America on two occasions in history.
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All kinds of merchants issued tokens for use in their own businesses, including general stores, grocers, department stores, dairies, meat markets, drug stores, saloons, bars, taverns, barbers, coal mines, lumber mills and many other businesses. The era of 1870 through 1920 marked the highest use of "trade tokens" in the country, spurred by the growth of small stores in rural areas.
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Some churches used to give tokens to members passing a religious test prior to the day of communion, then required the token for entry. Most of these were pewter, often cast by the minister using the church’s own molds.
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The Chicago World's Fair in 1933 issued wooden nickels as souvenirs, and the tradition of wooden nickels as tokens and souvenirs was born. The phrase, "Don't take any wooden nickels," reminds people to be cautious in their business dealings since some unscrupulous characters tried to use them in their dealings with people.