What a sweet deal!
This is an awesome old advertisement from the Washington Times, published on October 28th, 1911. This appears to be the row of homes on the east side of 14th St. NW, between Spring and Perry.
Source: Library of Congress
[googlemaps https://maps.google.com/maps?q=14th+and+perry+st+nw&layer=c&sll=38.936257,-77.032727&cbp=13,138.03,,0,-5.93&cbll=38.936936,-77.032723&ie=UTF8&hq=&hnear=14th+St+NW+%26+Perry+Pl+NW,+Washington,+District+of+Columbia+20010&ll=38.936257,-77.032727&spn=0.0057,0.010997&t=m&z=14&panoid=fo-LJgG48hd8x2CwcPlEQw&source=embed&output=svembed]