What's With the Red Number on the Front?

Poem Studio Personalized House Address Numbers Metal Sign | Custom Scroll Home Street Number Gate Fence or Front Door Plaque | Quick Shipping Realtor Closing

Replying to @eldanjo the first letter of the code in red on either

Black Lettering Happy Birthday On Floor In Front Of A Big Red

Red Round 60kmh Speed Limit Sign On Highway In Front Of Blue Sky

Rare Find – A Rolex 'Single Red' Sea-Dweller With Original Timing

Yellow Red Fade Race Car Numbers Decal Kit

Crease on front but nothing on back what kind of error is this : r

Cherryville leaders table zoning request, discussion at May meeting

Which House Number Is Most Valuable?, News

Strider Number Plate - Racer Series – Viscid Design Co

Bright red, black and white ice hockey jersey with number 1 (one