Sonoma County Telephone Directory, September 1958. 'Yellow Pages' -see The "classified" In This Directory, Its Yellow Pages Tell You "where To Buy It -

unstated: Pacific Telephone and Telegraph Company / Bell System, 1958. Cover illustrated with a sepia photo taken on the grounds of Fort Ross; 256p., standard Pac Bell format on newsprint; slightly musty, toning has made the white and the yellow pages nearly indistinguishable, but the paper remains supple. There's a little edgewear with light creasing of corner-tips, the owner has written fire & police numbers &c in ink on early leaves and a scribble (to start her pen) on the last leaf, an overall quite good exemplar (but heed the "musty" warning).