With coins this is done through a number of contrivances. For instance: (1) separating coins into dates and mints of issue; (2) going after low mintage pieces; (3) multiplying the number of grade categories; (4) isolating toning from brilliance; (5) prooflike surface from luster; (6) determining provenance or pedigree; (7) population or census numbers, as in low pop versus high pop; (8) Condition Census; (9) die varieties; (10) die states within die varieties; (11) Finest Known and tied for Finest Known; (12) rarity ratings [1 through 8].
Then we have: (13) so-called Premium Quality versus average quality; (14) split grades; (15) minor variances such as, open 3 versus closed 3, or micro-mintmark versus regular mintmark, or tall date versus medium date versus small date, or large letters versus medium letters versus small letters--and to put an end to it: (16) full strike versus average strike, with examples including full head, hair, nose, lips, horn, tail, bands, diamonds, claw(s), wreath, date, mintmark, skirt lines, bell lines, steps, toes, shield, rivets, rims, stars, clasp, denticles, centers, breast feathers, LIBERTY. And any combination of the above--the list is almost endless!
However, the Powers that Be have made a major faux pas (them's French for "slip of the tongue"). The word Indian is no longer good etiquette. Second, the artist created his portrait from the likenesses of three men. Lastly, the ruminant on the reverse of the coin is, more accurately, an American bison. If the powers of political correctness gain control over our speechification, we might come across this happy scene sometime in the new century:
A pink-cheeked nine-year-old lad enters his local coin-and-baseball-card establishment. After gaining the attention of the owner by farting upwind from him he asks in a sweet, soprano voice, "Hey mister! Have you got a 15-D Composite Native American head American bison reverse five-cent coin in Very Good you can lemme have for three bucks?"
For example: an inconsequential 1876 California fractional gold quarter dollar (octagonal format), catalog number BG-797 in the official guide, sold in raw Gem Uncirculated condition in October 1989 at the height of the 1985-1989 coin boom. It fetched $176. In 1992, long after prices had crashed, one savvy telemarketer placed a nearly identical specimen--now PCGS encapsulated Mint State 65 and having a low population of 2--with a giddy investor for . . . get this . . . $12,000. Superior Coin Company was awarded the honor and privilege of auctioning said BG-797 in February 1993 for the now-sober consignor. It failed to sell.
Also, seen in a January 4, 1993 Coin World ad: "Pop-1 for date, Pop-4 for series." See particularization, slab, clear.