there's a lot of things that might be called "cattle guards", as Tom sez, pictures needed to even say what it is - and for sure it'll be worth exactly what someone will pay .... which may be 1/2 what you think but welcome to the garage
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
but welcome to the garage