This RPPC postcard features a real photo of Crown Prince Wilhelm of Germany with his wife and infant son from the year 1906. The postcard, measuring a standard size of 5.5 x 3.5 inches, is an original print made of paper. The historical significance of this postcard, depicting a royal family in Germany during the early 1900s, makes it a valuable and unique collectible for postcard enthusiasts and history buffs alike.