Possible Clues:

• Symbol with lines carried by Noah's boy on his boat
• Greeting card company
• Sign of authenticity (eg of silver)
• Assay-stamp
• Precious metal stamp
• Sounds like stain on community centre? That¿s a sure sign
• Stamping on a precious metal object
• Finally Noah with ship taking on board disheartened woolly animal producing guarantee of pedigree
• Hard gospel for everyone to penetrate -- a distinctive feature
• Official stamp from The House leaves an impression