accept
agreement
allowed
application
approval
approve
approved
background
blank
business
certificate
certified
concept
contract
control
document
empty
equipment
grunge
guarantee
insignia
label
law
mark
object
office
official
old
paper
paperwork
pass
permission
permit
quality
retro
rubber
seal
secretary
sign
stamp
stamper
supplies
symbol
tag
tool
validate
validation
vintage
wood
wooden