I just found and scanned some old photos, this picture was taken by my boss, I was not aware that he took a camera and walked to me till he said 'smile'.
I had worked at the branch office of an American trading company Christmas House.
You can guess the year that everyone used typewriters, I was able to remember more than 400 numbers once dialed it by the old fashion phone.
The time has changed, we don't have to keep it in mind.