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High-dispersion spectra for giants through turnoff stars in the Li 6708Angstrom region have been obtained and analyzed in the old, metal-deficientopen cluster, NGC 2243. When combined with high dispersion data from othersurveys, the cluster is found to contain a uniquely peculiar star at theluminosity level of the red clump. The giant is the reddest star at itsluminosity, exhibits variability at a minimum 0.1 mag level on a timescale ofdays, is a single-lined, radial-velocity variable, and has V_sin(i) between 35and 40 km/sec. In sharp contrast with the majority of the red giant clustermembers, the star has a detectable Li abundance, potentially as high or higherthan other giants observed to date while at or just below the boundary normallyadopted for Li-rich giants. The observed anomalies may be indicators of theunderlying process by which the giant has achieved its unusual Li abundance,with a recent mass transfer episode being the most probable within thecurrently limited constraints.

WIYN Open Cluster Study LXXXI. Caught in the Act? The Peculiar Red Giant NGC 2243-W2135