History of the threepence the possible advent of a decimal currency at the time (see florin), when the 3d at 1/80th of a pound would not have fitted within a decimal system). Currency silver threepences from 1838 to 1926 were of identical design and cannot usually be distinguished except in the best conditions when the higher striking standard of the maundy coins stand out; this resulted in the curious legal anomaly that when the currency was decimalised in 1971 "all" silver threepences from 1870 onwards were revalued at three new pence, not just the maundy coins. Threepences were produced with both the "young head"
Decimal representation result follows from dividing all sides by formula_11. Some real numbers formula_13 have two infinite decimal representations. For example, the number 1 may be equally represented by 1.000... as by 0.999... (where the infinite sequences of trailing 0's or 9's, respectively, are represented by "..."). Conventionally, the decimal representation without trailing 9's is preferred. Moreover, in the "standard decimal representation" of formula_13, an infinite sequence of trailing 0's appearing after the decimal point is omitted, along with the decimal point itself, if formula_13 is an integer. Certain procedures for constructing the decimal expansion of formula_13 will avoid the problem of