Decor and furniture
Picture U (Hidden Safe)
When destroyed, will randomly spawn (25%) Wall Safes and (75%) an air block. Do not leave an empty space behind it.
Changes into
When its hit points run out it becomes 
Wall Safe.
Drops when destroyed
Wood× 1-2
Where to find (1 POIs)
Junkville Saloon (tier 3).
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.