Collating functions are deleted when they are overridden by later calls to the collation creation functions or when the database connection is closed using sqlite3_close(). The xDestroy callback is not called if the sqlite3_create_collation_v2() function fails.
Cost of Silver Coins. For the most part, silver coins will range in price from a few dollars over spot to $10-$20 over spot per ounce. The higher the price, the more likely that there is limited quantities of the coin available due to reduced production numbers or higher demand.
My quarter rocks. 1964 was the last year for coins minted entirely of .999 silver, however, some coins were still minted with ,90 silver up until I think 1982 or so. If you can find a 1982 dime with no mint mark it is worth about $350 in any condition. That was the year that somewhere between 30,000 and 300,000 coins were minted at the S.F. Mint but the die for the mint mark wore off. Making the coins valuable for having this flaw.