1970 US 6c Save Our Air Anti-Pollution Stamp #1413 Used Cancelled Philately

This listing is for a used, cancelled copy of the 1970 6-cent "Save Our Air" postage stamp. Issued on October 28, 1970, in San Clemente, CA, this stamp was part of a four-design anti-pollution set released to focus public attention on environmental conservation.
Item Details:
Scott Number: #1413
Issue Date: October 28, 1970
Condition: Used / Cancelled (visible wavy-line cancellation as shown)
Design: Features allegorical artwork of the Globe and a Seagull, symbolizing the need for clean air and the fight against atmospheric pollution.
This vintage stamp is a great addition for collectors of environmental themes, 1970s Americana, or ecology-related philately.

Please review the high-resolution photos to inspect the specific "wave" cancellation mark and the stamp's overall physical condition.