The postcard shown above was sent by a cousin of the recipient during his/her European and African vacation in 1904. It was sent from Barcelona, Spain just prior to his/her departure for Algeria in Africa. The stamp is the "10 Centimos" Rose-Red King Alfonso XIII issue of 1900-1905, (Scott #274).

NOTE: 100 Centimos equals 1 Peseta. In 1999, Spain adopted the Euro as its currency standard and Spanish currency was gradually withdrawn from circulation. This process was completed on February 28, 2002. 

The reverse of the card shows a Barcelona CDS and  two Providence CDS'. The post office in Providence determined that the address was actually in East Providence and wrote "East" in pencil before Providence. They also stamped it with "Deficiency in Address - Supplied by Providence R.I. P.O." in purple. The card was last stamped with an October 23rd - received CDS by the East Providence Post Office when it arrived there. 

I checked the address with my mapping program and "99 Anthony Street" is indeed located in East Providence.

The face of the card depicts the Grand Continental Hotel located in Barcelona, Spain. (The hotel was still there and still in business, when I last visited the city in 1973.) The message on the face of the post card reads:

                                                                  Oct 8' 04
Tues in Spain - Leaving for Algeria tomorrow -
Am longing to hear from your brothers & sisters
Love to Uncle Billy & Aunt Grace
                                                                    A.

View the Front of the Card - Grand Continental Hotel - Barcelona, Spain