1949 Envelope Postal Stamp of Pre Independence Cancelled With Post Independence Slogan

Type - Postal History ( Stationery ) - Stamps on Cover -  Philately

VERY INTERESTING HYBRID
 Envelope
 From
Raghu Vira , Member Constituent Assembly ,

( Note : Pre 1947 Punjab now becomes East Punjab )

( Post Marked ) 18-03-1949

The envelope has King George VI ( British Indian Postal Stamp ) of One and Half Anna
But The Cancellation Stamp Has Independent   India 's  Slogan

" SUPPORT INDIAN INDUSTRIES "