abstract
aged
background
board
bright
brown
damage
decay
decompose
detail
grain
grung
hard
hardness
industrial
iron
material
metal
metallic
metalwork
old
orange
oxidized
pattern
plate
red
retro
rough
ruffle
rushed
rust
rusty
scale
sheet
ship
sign
spotted
stain
steel
structure
surface
tank
texture
vintage
wall
waste blight
weathered
worn