I have a print with a old label that states it is done by Edward Gross Co. Inc. 118 East 16th St. New York. On the label it names the print as Blue Boy By Gainsborough. There is a 1261 written in pencil beneath the label. It is in a very old frame as well. I would like to know how to find out more about the value of the print and who is the Edward Gross Company.