They usually purchase them from collectors that are selling their colletions. The also watch estate sales and auctions for good deals.
Yes, they do buy and sell coins and stamps.
Coins are studied and collected by Numismatists Stamps are studied and collected by Philatelists.
The letters are called Mintmark's NOT mint stamps. They are used to identify which mint the coin was made at.
The value of NZ coins varies widely, and you will find a book listing these at most coin and stamp dealers.
Most coin dealers will do this for you.
Coin dealers will buy coins.
Often pawn shops are the ones that will buy collectible stamps. In that area code there is a Shaker Coin & Gold that indicates they buy stamps. There are a number of others in the area. Look for Stamp Dealers in your zip code in the yellow pages or online.
There are a number of dependent coin dealers throughout the US. Some popular companies are Liberty Coin Service, Springhill Coins and Heartland Coin Gallery.
Coin dealers and jewelers are known to buy coins.
Most coin dealers buy coins
Banks don't buy old coins, coin dealers will buy old coins, some jewelry stores will buy old coins, banks will take your old coins at face value and then sell them to coin dealers and and make some profit.
Burton Hobson has written: 'Coin identifier' -- subject(s): Coins 'Coin collecting as a hobby' -- subject(s): Coins, Collectors and collecting, Juvenile literature, Numismatics 'Stamp collecting as a hobby' -- subject(s): Stamp collecting 'Historic gold coins of the world: from Croesus to Elizabeth II' -- subject(s): Gold coins 'Illustrated encyclopedia of world coins' -- subject(s): Coins, Dictionaries, Encyclopedias 'Picture guide to coin conditions' -- subject(s): Numismatics 'Hidden values in coins' -- subject(s): Coins 'International guide to coin collecting' -- subject(s): Coins 'Stamp Collecting for Beginners' 'Getting started in stamp collecting' -- subject(s): Stamp collecting 'Coins and coin collecting' -- subject(s): Coins 'Catalogue of Scandinavian coins' -- subject(s): Scandinavian Coins