abandoned
abstract
aged
art
backdrop
background
box
brown
construction
corrosion
corrosive
crack
cracked
damaged
design
detail
dirty
frame
grunge
grungy
handle
industrial
industry
iron
material
metal
metallic
old
oxide
oxidized
pattern
retro
rough
rust
rusted
rustic
rusty
sheet
stain
steel
surface
texture
vintage
weathered
worn