GONALAKIS PROPERTIES 1764 East 20th Street 1772 East 20th Street 9/13/78 (78-54) Authorized purchase of property at 1764 East 20 St. from Emanuel and Sophia Gonalakis for $18,500. 9/13/78 (78-55) Authorized purchase of property at 1772 East 20 St. from Emanuel and Sophia Gonalakis for $46,500.