Keywords: NY-990H.svg 8 by 10 New York State reference marker Shield size and letter height based on http //www empirestateroads com/rm/2 html Character spacing based on http //www gribblenation net/nypics/subs/ref961m jpg Own 2006-12-02 TwinsMetsFan Public domain Diagrams of New York reference markers 990H 990 number 9101 number 1000 number |