O-rich circumstellar dust shells that do not exhibit 1612 MHz masers (Lewis 1992), despite appropriate IR colors and 1612 MHz sensitivity, are known as OH/IR star color mimics. Since previous studies of mimics depend on samples with a limited IR spectral type and color range, we use the data collected for poster III-8 to identify the mimics in an all-sky sample of bright IRAS sources with S(25) > 100 Jy and (60-25)μm < 0.0: this expands on Gaylard et al. (1989), and benefits from the greater quantity of maser data now and a wider IR color range.