A normal coin is what is released into circulation.
A Proof coin is one that has been struck on specially prepared and polished dies and hand polished to give a mirror like finish.
Proof coins can be minted in the same metals as normal coins, but quite often, they are minted in precious metals.
Proof coins are not intended for circulation, but for investors and serious collectors and they are usually packaged for protection and sold in their year of minting for a price much greater than the face value of the coin.
An armored vehicle is reinforced on the body with bullet proof steel or metal.
A proof uses postulates and theorems to prove some statement.
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About 40 proof
The 1921 Chapman was a proof version of the Morgan Dollar. Very few were minted and because of this, they command a premium price.
flow proof is just run of text 2 colmn has line/column breaks
Uncirculated coins go through the normal minting process, but are then removed and placed into sets for collectors. Proof coins are made on specialized dies to achieve better detail and more shine in the finish.
An Hibernia (Irish) 1805 copper Halfpenny (George III), circulated but still in good condition, might fetch anything from £3 to £50 GBP. An Hibernia (Irish) 1805 copper Halfpenny (George III)(Proof FDC), circulated but still in good condition, might fetch anything up to £175 GBP. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in bronzed copper FDC), circulated but still in good condition, might fetch anything up to £175 GBP. An Hibernia (Irish) 1805 Halfpenny (KG III)(Proof in bronzed copper FDC - plain edge), circulated but still in good condition, might fetch anything up to £150 GBP. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in gilt copper FDC), circulated but still in good condition, might fetch anything up to £275 GBP. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in gilt copper FDC on a thick flan), is considered extremely rare. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in silver FDC), circulated but still in good condition, might fetch anything up to £1,500 GBP. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in gold FDC), is considered extremely rare. An Hibernia (Irish) 1805 Halfpenny (George III)(Proof in gold FDC - plain edge), is considered extremely rare. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
To show or demonstrate something is a more flexible concept; proof suggests a certain degree of intellectual rigor.
A proof coin has a special shiny finish on it and it is made to be sold to collectors, and not used as money.
Water proof mascara is made more for if you swim, because the mascara is water proof when it comes in contact with the water it won't come off. However this does make it harder to remove. Normal mascaras however will run in contact with water.
Showerproof beads water off but is not puddle-proof