Sign Decal Wood 4x2
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 (23 POIs)
Dishong Tower (tier 5), Haven Hotel (tier 5), Sprout & Sons Nursery (tier 4), Buy-N-Go Grocery (tier 3), Journey's End (tier 3), Town Square Apartments (tier 3), Canyon Gift Shop & Diner (tier 2), Crack-A-Book (tier 2), Downtown Shamway (tier 2), The Budget Burrows (tier 2), Bath Haus (tier 1), Blue Birdie (tier 1), Boe's Market (tier 1), Abandoned Downtown Deli, Carlos' Travel Center, Cathedral of the Fallen, Coffee Shed, Corona Wipes Billboard, Downtown Hotel, Fortified Fizz Cola Warehouse, Montgomery Public School, Paradise Plaza, Red Star Gift Shop.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.