Sign Decal Wood 3x3
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 (18 POIs)
Navezgane County Jail (tier 5), Navezgane General Hospital (tier 5), Diamond's Mens Club (tier 4), Downtown Marketplace (tier 4), Ecotrash Recycling Center (tier 4), HSP Logistics (tier 4), Ballzstrike Bowling (tier 3), COC Chemicals (tier 3), The Bend Apartments (tier 3), Bobcats Bar (tier 1), KZZ Radio Station (tier 1), 3rd Eye Optometry, Blue Clover Hotel, Fallen Survivor Compound, MeltDowns, Northline Inspection Depot, Outlaw Outlets, Willtronics Corner.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.