If this website is to be believed, the ship shown on the postcard is actually the sister ship Olympic; not the Titanic.
They also point out some errors in the descriptive paragraph below the picture. For example, the time is wrong and although in this link they show the loss of life at 1300 (yours shows 1500, but rather crudely, suggesting that someone either printed or penned it over with some corrected information)...even though the correct loss of life was actually 1523.
http://www.phillyseaport.org/web_ex...ostcard.htmlIt is still a wonderful piece for any collection.