NHLDNational Historic Landmark District (US NPS)
NHLDNumber of Calls Held (telephony)
References in periodicals archive ?
The difference in effective ages infers that more investment has occurred in the NHLD relative to the VHD.
This relationship is further illustrated by separating the data into two sub-sets, one containing properties in the NHLD and another for properties in the VHD.
This indicates that not only does the district have greater profit-making potential through renovation, but also that less investment has occurred relative to the NHLD for the same time period.
About 20% of the observations are residential properties located in the adjacent Victorian Historic District, the first "suburb" of the NHLD, which was developed in the 1880s.