Science shows how dirty coins, currency can get - Numismatic News

Collecting communism realm of 1960s – Numista

The Numismatic Bibliomania Society Esylum: Volume 17, Number 43 October 19, 2014

Nearly 200 ancient Roman coins found in Italy

What US coins are worth good money? I have some old coins. - Quora

Can I safely clean old 90% American silver coins by soaking them in white vinegar or will the silver coins be tarnished? - Quora

How to Clean Coins (6 Easy Methods)

US and World Coin Grading Tutorial - Heritage Auctions

Antiques Trade Talks - coin expert Robert Parkinson - Antique Collecting

What is a Numismatist? - Numismatic News

What year is the rarest silver quarter? - Quora

Does a coin lose value when made into a pendant? - Quora

Dual clad error 1972 quarter - help with grading process - Newbie Coin Collecting Questions - NGC Coin Collectors Chat Boards

20 Best Coin Collecting Books of All Time - BookAuthority

Continental currency, the dream of American independence, and connecting cash to history

What is the value of a 1776 History Channel Club coin? - Quora