India, May 24 -- From a banker turning into a renowned numismatist, Shankar Kumar Bose's journey is a fascinating one, as Ranjita Biswas finds out

Kolkata-based Shankar Kumar Bose was a banker when coins from ancestry suddenly made a call and he was enticed, and he then started on a whole new path. At the ripe old age of 87, writer of many books on numismatics, he is still at it, researching, writing and is as enthusiastic as ever in new areas of exploration. Currently, he is collecting documents on the 'token' banks used to give customers while they waited for service, something now forgotten in the digital age, for his book A Historical Journey of Bank Tokens.

It is quite interesting how Bose, who is originally from Assam, has stepped...