Differences in logarithmic abundances between M 67-1194 and the means for the other 13 programme stars of the present study, plotted vs. the condensation temperature of the elements (Lodders 2003). The red dashed line indicates the rough mean locus of the solar-solar twin abundances, according to Meléndez et al. (2009). The grey dashed line is a regression line to the data. Error bars represent the RMS errors in the means for the entire sample (σ/).