Fade resistant posted marker sign

A posted marker vertically elongated rectangular flexible sign apparatus for mounting on a fence post, comprising:

• the fence post including a structural T shape body defining a face rib, a left side rib having a left rib end, a right side rib having a right rib end, the left rib end separated from the right rib end by a post width, centrally disposed studs a first rib valley and a second rib valley positioned along the face rib at a stud spacing distance, each stud including a bottom wedge, a peak, and a top wedge defining a vertical stud length, and each of the first and second rib valley having a vertical valley length with two valleys defining a minimum valley separation distance and a maximum valley separation distance
• a flexible sign body including sides and a top end and a bottom end defining a sign height between the minimum valley separation distance and a maximum valley separation distanced, the flexible sign body including a central core, a base weathering protective layer, a color surface and a transparent ultraviolet protective layer;
• and
• the flexible sign body defining a top hole set and a bottom hole set separated by a vertical hole separation distance forming a solid center section;
• the vertical hole separation distance between the minimum valley separation distance and a maximum valley separation distance;
• each hole set defining a horizontal outside hole separation distance equal to the post width;
• and
• a bendable wire tie including a bent body defining a left wire arm and a right wire arm connected by a wire back, the bendable wire tie positioning the top end in the first rib valley and the bottom end in the second rib valley.