[The following excerpt is published courtesy of DLRC Press and its author, David Lawrence This information was originally published in 1991 in The Complete Guide to Barber Halves
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GLOSSARY
1947 – Refers to prices listed in the 1947 (1st edition) of the “Red Book..” An indication of 1947 retail prices.
1991 – Refers to prices listed in the 1991 (44th edition) of the “Red Book” An Indication of 1991 retail prices.
ANACS -A third-party certification service, formerly part of the American Numismatic Association. Now located in Columbus Ohio under different ownership.
BCCS – The Barber Coin Collectors Society.
CDN -The Coin Dealer Newsletter published In Torrance, California. CDN values in the year & mint mark analysis are based on the June 1991 CDN Monthly Summary.
HUB – The coin design, in steel, used to make the working dies.
MUMPS – Refers to coins which exhibit a goiter-like swelling on the neck and jaw of Liberty. Found on quite a few dates from 1901 to 1909. Mostly but not exclusively on O-mints. Usually not noticeable on coins below VF grade. Appears to have been caused by some sort of die buckling. (Also seen on Barber Quarters of the same period)
NGC – Numismatic Guaranty Corporation of America. The NGC Census Report of June 1991 was used to tally the population of NGC certified coins in the date by dare descriptions.
0-MINT – New Orleans Mint. An O-mint coin was made in New Orleans.
PCGS - Professional Coin Grading Service. The PCGS Population Report of June 1991 was used to tally the population of PCGS Certified coins in the date by date descriptions.
P/L – Proof-like
PHILIPPINE HOARD COINS – Refers to coins originally sent to the Philippines for local use, hoards of which periodically show up in the U.S. in relatively high circulated grades. The predominant dates are 1898-S, 1899-S and 1900-S. Most are cleaned XF and AU’s
PLANCHET STRIATIONS – Light parallel lines in the planchet before striking due to wearing of the roller fingers that flatten the planchet stock before stamping. Not limited to Barber Halves. Seem to occur most often in S-mint coins.
PRESENTATION PIECE – Coins which were specially prepared and handled for presentation to “Important” dignitaries. Often the first or one of the first coins struck on new dies and having deep proof-like fields (see 1906-D).
PROOF-LIKE – Refers to coins that have mirror (reflective) fields, as proof coins do.
RANKING – The ranking from low to high in relation to the other 73 coins of the series. For example, a coin whose mintage ranks 5/73 has the 5th lowest mintage of the series. In the case of certified mint state or proof coins, the ranking is based on the total number graded by PCGS and NGC combined in their respective June 1991 reports.
RARITY RATING – The scarcity of the coin relative to others in the series. See Chapter 3, ESTIMATING SCARCITY.
RED BOOK -”A Guide Book of United States Coins” by R.S. Yeoman, published by Western Publishing Co. of Racine, WI. It is considered a retail price guide.
RPD – Repunched date. A date that shows signs of numerals underneath, indicating the date was punched in more than once. The entire date may be doubled, or it may show in only one or two numerals.
RPM - Repunched mint mark. The mint mark has been punched into the die twice resulting in a doubled mint marks on the coin. Since the doubling appears on the die itself, identical specimens are produced and the variety is considered “collectible.” See 1907-S/S.