stamp as

stamp someone or something as something

to label someone or something as something; to mark someone or something as something. His manner stamped him as a fool. The committee stamped the proposal as wasteful.
See also: stamp
References in classic literature ?
The door of the next car opened, and Colonel Proctor appeared on the platform, attended by a Yankee of his own stamp as his second.
president, who may be honored with a postage stamp as soon as the first birth anniversary following death.
Some serious stamp collectors have lamented the stamp as reflecting what they see as the overcommercialization of the Postal Service, which is also selling more than 80 different Bugs gift items through its 30,000 post offices.
Avery Dennison, a worldwide leader in pressure-sensitive technology, has produced the latest peel & stick Flag Over Porch stamp as its first order of a three-year, multi-million dollar self-adhesive contract awarded last year by the USPS -- the largest single contract for self-adhesive stamps from the Postal Service.