This is the 1990 Conference and Visitor Bureau promotional map for Montgomery County, Maryland.  It is a fold out map.  It measures 9" X 4.5" when folded and 45" X 36" when fully opened.  The copyright is by ADC of Alexandria, Inc.  There is a street index on the back of the map.  The map is in good condition for the age. There some tears on the folds near the center of the map from use. Please examine photos.

Thanks for looking.