This is for a unfinished Billboard. 

This is the most detailed N-Scale Billboard I have seen.

It has modeled light, electric meter, electric panel, conduit, handrails.

Paint it brown, print off the sign that you want and glue it on and you are ready to set it on your layout.

This is a resin 3d printed model and as with all resin models if you need to glue it use super glue.