Metallicity versus reference T_eff for individual giant stars in NGC 2682 (M67) that were analysed by more than one author using high- and low-resolution spectra. The metallicities are taken from the following publications: Cohen (1980); Foy & Proust (1981); Tautvaišiene et al. (2000); Friel et al. (2002); Yong et al. (2005); Santos et al. (2009); Pancino et al. (2010); Friel et al. (2010); Jacobson & Friel (2013); and Reddy et al. (2013). Data for the following stars are shown (reference T_eff, number from Fagerholm 1906): (4250, 108); (4280, 170); (4450, 105); (4700, 164); (4710, 224); (4730, 141); (4730, 266); (4750, 84); (4760, 151); and (4800, 286). The bars on the upper right indicate minimum, mean, and maximum uncertainties for the individual [Fe/H] values quoted in the publications.