This range was introduced in v. 5.1 of the Unicode Standard, containing 12 characters for Roman weights, measures and coins. They have been included in the Unicode Standard as the result of a proposal from David J. Perry. Eleven of these characters were part of the Private Use Area of the MUFI character recom- mendation v. 2.0. They have been selected below. Note that this range is not part of the Basic Multilingual plane.