Spitball Army

Card is untitled on the front.

Printed on the back of this postcard:

WINCHESTER MYSTERY HOUSE
SAN JOSE, CALIFORNIA

SARAH L. WINCHESTER – architectural and artistic genius…or…misguided spiritualist?  Both aspects are demonstrated in these mysterious and rambling roof lines.

B5068                             Guided Tours Daily

Publication information:  The Continental Card.  The Winchester House.  A Registered California Historical Landmark No. 868.  Mike Roberts, Berkeley 94710.

The wikipedia page for the Winchester House contains a brief explanation of the weirdness that went/goes on there.