New York Times - Dec 10, 1978
http://74.125.157.99/url?sa=t&rct=j&q=supersnipe%20comic%20emporium&source=newssearch&cd=1&ved=0CCcQqQIwAA&url=http%3A%2F%2Fselect.nytimes.com%2Fgst%2Fabstract.html%3Fres%3DF40A11FF3F5511728DDDA90994DA415B888BF1D3&ctbm=nws&ctbs=cdr%3A1%2Ccd_min%3A1%2F1%2F1970%2Ccd_max%3A1%2F1%2F1980&ei=1vIlT_-WFdOctweFzMyKDg&usg=AFQjCNGto8OKajOT4Kx-BArhy-Pc4Kqu_g&cad=rja
Superman went on to earn his own comic book. ... just changed hands for a1,000," says Ed Sumner, proprietor of the Manhattan comic book emporium Supersnipe, ...
the rest of the article is behind a paywall.
*EDIT*
New York Times - Jan 1, 1973
http://74.125.157.99/url?sa=t&rct=j&q=supersnipe&source=newssearch&cd=2&sqi=2&ved=0CCsQqQIwAQ&url=http%3A%2F%2Fselect.nytimes.com%2Fgst%2Fabstract.html%3Fres%3DF10B12F73F551A7493C3A9178AD85F478785F9&ctbm=nws&ctbs=cdr%3A1%2Ccd_min%3A1%2F1%2F1970%2Ccd_max%3A1%2F1%2F1980&ei=pfMlT5ODIsiTtweV3tSUDg&usg=AFQjCNFzl-M1Z7VHMCgjM41L08VcN-_doA&cad=rja
Summer is owner of The Mr. Summer continues: Supersnipe Comic Art Empo- This is a good time to deal rium, which for the past four in current books too ...
can read this one:
The Miami News - Jan 3rd, 1973
http://news.google.com/newspapers?id=iMYlAAAAIBAJ&sjid=JfMFAAAAIBAJ&pg=2925,1038072&dq=comic+art+emporium&hl=en
The bulk of the comic book market is made via mail order, bu in most big cities you can buy over-the-counter from a shopkeeper. One such man is Edward Summer, a bearded, ponytailed 26-year-old filmmaker who got into the business because, he says, "filmmaking is a very tight field." Summer is owner of The Supersnipe Comic Art Emporium which for the last four moths has been at 246 East 83rd St., but isin the process of moving around the corner to 1615-17 Second Ave.
Mapquest's got 1615-17 Second Ave at 84th street.
same article (more or less) this time Anchorage: