"The Seneca, Rochester, N. Y.;
550 rooms & baths; an ideal convention hotel;
Chas. F. Wicks, managing director"
Dated between 1945 and 1960
E. C. Kropp, Milwaukee, Wis.
Number: 13528

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"Ball Room, The Seneca, Rochester, N. Y."
Date not known
E. C. Knopp Co., Milwaukee
Number: 13903