Implications of $\mu\nu \gamma \gamma$ Production on Precision   Measurement of the W Mass
  The process $p \bar p \rightarrow \mu^- \bar \nu \gamma \gamma$ is calculated including finite lepton mass effects. Implications for precision measurements of the $W$ mass at the Tevatron are discussed. 
U. Baur(SUNY-Buffalo), T. Han(UC-Davis), R. Sobey(UC-Davis), and D.   Zeppenfeld(UW-Madison)