Locomobile 1908 vanderbilt cup poster sign

I found this item at an estate sale.Its a 28x 19 cardboard sign or poster showing the winner of the 1908 vanderbilt cup race.Any information on this item will be appreciated.Inside the image bottom left it says Frank Presbrey co. on the bottom right it says ZT SChultz perhaps the artist . On the bottom edge it reads. The first American car to achieve the great honor, the locomobile winning the great international race for the vanderbilt cup oct 24 1908.Average speed 64.38 miles per hour breaking all records in competion for this famous throphy.The poster is good condition and the colors are bright.I have the origional frame and glass also.