Question

12.
The
on Jal Cooper is an important source to
understand his significant contribution to this field​

Answer 1

Answer:

Explanation:

There are many persons notable for their contributions to philately. One of them is Jal Manekji Cooper, an expert of the postage stamps and postal history of India. ... The India Post has issued the 'Jal Cooper' stamp in 1977. These stamps are an important source to understand his significant contribution to this field.

Answer 2

1. The anwer of these question is stamp.