It may also fit models, 661B,668B, 674B, 677B, 678B, 684B and 685B. It appears to be complete with the exception of the AC interlock cord and bracket.
Back Cover for Vintage 1948 Philco Model 48-1001, 10" Table Top TV
Back Cover for Vintage 1949 Emerson 667B, 16" TV, Possibly Others
Parting out, The Back Panel for Vintage 1940's Tele-Tone TV-220 Portable 7" TV
High Voltage Cage and Cover for Vintage 1948 Philco Model 48-1001, 10" TV
