Hello Sunilkumar -- I'm here with my trusty Standard Catalog and looking up your coin. The catalog shows good value, but nothing spectacular. This coin is made of copper-nickel and was issued only in 1919 and 1920.
To be sure the catalog values reflect reality, I then look at auction prices for these coins. THERE IS A BIG DIFFERENCE, especially in coins that are in good condition. The auction results are far higher than the catalog values. This happens sometimes, but not often.
The coin in our picture comes from the major auction house Baldwin's in London. The coin is in very good condition and it sold for 300 British pounds (about $490 US dollars) in a 2013 auction. CoinQuest in grateful to Baldwin's for use of their coin image.
Based on both the catalog values and auction results, we estimate the following values for these coins:
worn: $10 US dollars approximate catalog value
average circulated: $100
well preserved: $350
fully uncirculated: $600
coins dated 1920 are somewhat more rare; multiply these values by 1.3
Since this is a valuable coins, counterfeits exist. The side-by-side comparison below shows obvious differences between genuine and counterfeit. Sometimes counterfeit coins are not so easily detected.