Retail prices for an 1898 nickel* range from about $3 to $35 depending on condition. You'll be lucky to get 2/3 of that amount if you sell it, because the buyer will pay wholesale.
If there's a coin show in your area (check the local papers) you might be able to sell it to someone who has a booth with a spread of U.S. 19th-century coins. Alternately, check for a dealer who has PNG or PCGS certification.
(* please, not "your" nickel. When we read it that means one of us has the nickel, LOL!)
The 1898 Liberty Head nickel is common, average circulated coins are $4.00-$12.00
The coin is a 1898 Liberty Head nickel (1883-1912) most show very heavy wear and are valued at $5.00-$9.00.
The internet
While many people mistakenly think that older nickels contain silver, all US nickels except the famous "war nickels" of WWII are made of an alloy of 25% nickel and 75% copper.
A coin dealer would be a good place to sell it.
Try a coin dealer.
yes
Please check your coin again. Indian head (buffalo) nickels were minted from 1913 to 1938.
A US Indian Head nickel dated 1930 is common, coins in average circulated grades sell of $1.00-$3.00
based on serial number of an original colt SAA, 172596 was made about 1898........
yes, all of them but the buffalo nickel
Please check again and post a new, separate question. Buffalo nickels were first released in 1913. All 1898 nickels carried a Liberty head design with the Roman numeral V on the back.