Bradford Hartley at 24 Downing Street, New York, in 1904 was advertising his high-end pens. Cheapest he made was $3.50, a steep price at the time. He offered to sell it by mail with monthly payments! $1 would get you the pen, with $1 in 30 days, $1 in 60 days, and $.50 balance in 90 days. I have an eyedropper with original nib that still performs well. Unfortunately, a Google search returns little info other than the ad from 1904. Any info of any nature would be appreciated.