Aaron Morrissey visits WMATA HQ and finds an omnibus sign with all of the known and planned Metro stations. I have an old D.C. map from about 1980 that shows the planned station at Chillum (which decamped to West Hyattsville) and maybe I’ve seen a reference to Federal City College (which became UDC). The unpaired Franconia station name tells me that the sign was made before the split tail of the Blue/Yellow lines was conjoined into the single terminus of Franconia-Springfield. But the planned then deleted Oklahoma Avenue station does not appear.