1970 New Delhi First Balloon Mail Centenary Cover #FFCC14

2019 Khadi Artisan Carried with Gandhiji's Wood Charkha Gandhi cancellation Special Cover #Spl-44

2018 80th Anniversary of mahatma Gandhi's 7th Visit to Odisha with Gandhi Cancellation Moat Cycle Carried Special Cover #Spl-27

1964 New Delhi - Bombay Jet Caravelle First flight cover #FFCF72

1991 Delhi - Zurich First flight cover #FFCF71

1937 Bombay - Delhi First flight cover #FFCF70