Decor and furniture
Sign Decal Corrugated Metal 6x2
It's a sign. You write things on it.
Harvest drops
Iron× 10
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Scrap Metal Pile (60% of the time) where it lands.
Where to find (16 POIs)
Vanity Tower (tier 5), Coleman's Drive-In (tier 4), Super Shamway (tier 4), Downtown MeltDowns (tier 3), Law & Order Square (tier 3), Shady Square Shoppe (tier 2), The Piggy Bank (tier 2), Hurry Harry's (tier 1), Jerry's Fill (tier 1), Motel Eight (tier 1), Dark Coffee Co, Karate Kamp, Navezgane Outlets, ParKing Lot, Rusty's Razors, Westwood Place.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.