Sudh bappa — I am amazed by the amount of research and data you manage to remember and collate for your articles. Btw a small trivia about my memories of pens. When we were in school and you were travelling to either hong kong or Singapore ( spare my memory ), shankar asked you to buy him a pair of shoes and you had to leave your footwear there and wore his shoes on your journey back. I am sure you remember that. Also am sure you won’t remember is that I had asked you to get me a pen and you did get it. I remember writing with that pen till my 10th standard.