World Environment Day - 1980

- Special Cancellation  on the  Envelope.

- Cancellation depicts "Penguin".

- Occasion: "World Environment Day - 1980".

- Cancelled at Bombay.

- Country: India.

- Date: 04.06.1980.

Antarctic Treaty - Penguins

- First Day Cover.

- Stamps and Cancellation depicts "Penguins".

- Cover depict "Maitri - Indian Antarctica Station".

- Setenants Stamps issue.

- Setenants of 2 Stamps were cancelled on the First Day Cover.

- Occasion: "Antarctic Treaty".

- Country: India.

- Date: 23.06.1991. 

World Environment Day - 1980

- Special Cover.

- Cancellation depicts "Penguin".

- Occasion: "World Environment Day - 1980".

- Country: India.

- Date: 05.06.1980.