Decor and furniture
Sign Canvas Wood 5x1
It's a sign. You write things on it.
Harvest drops
Wood× 2
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Wood Debris (Terrain) (75% of the time) where it lands.
Where to find (12 POIs)
Navezgane General Hospital (tier 5), Ballzstrike Bowling (tier 3), Meat You Here Butchery (tier 3), Animal Hospital (tier 2), Fun-Gi Daycare (tier 2), The Harrison Residence (tier 2), Century Outlet (tier 1), Crumbled Plug Hub Store, Destroyed Pharmacy, Marlon's Kart Track, Moda Bar, Rest Area 7.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.