Anthracite is a better type of coal than bituminous, anthracite is the best type of coal because it is the purest type of coal as it has the highest amount of carbon content p â¦ resent in it. It is made up of 90-95% of carbon content, so, it has a higher calorific value and burns without a smoke.
The NGC Coin Price Guide is a complete catalog of coin values for US and World coins from 1600 to date, compiled from a variety of numismatic sources. Sign In Join
I. Choice & Gem, PCGS & NGC. In the mainstream of the coin business, for a pre-1935 âmint stateâ (uncirculated) U.S. coin to qualify for a certain grade, at a MINIMUM, it must be certified as such by the PCGS or the NGC, or be likely to be so certified IF submitted.