The Lenco P77 is a rare beast, and one of the most unique vintage tonearm you are likely to come across. We have had one in our system here for the last 4 years, and it gets regular use on the Thorens TD-124. As a high mass arm it is ideally suited to low compliance cartridges, and is a great match for the Denon DL-103.
As most folks will never have seen one of these arms up close, we thought we would put together a short video showing the major features of the arm, and it main component parts. The video is posted below, and is hosted on our new lencomotion audio YouTube channel which you can find here https://www.youtube.com/channel/UC7LO3teaZNh0G7JYRwP4GPA.