How many DP70s were made? That is a question which I have been trying to answer for many years. It appears that there is no final record of the exact number of machines. I will never find out. Out of curiosity and to get an idea of the range of numbers I started to list serial numbers, cinema, city and country of each known machine. The list of machines which been located by friends and myself during the past 23 years (1982-2005). Although every effort has been done to keep the list up-to-date, you must be prepared to find out that some machines have been removed.

The machines have been located at one point during these 23 years and may not be installed any longer. The list does not always reflect where the machines are today. Some projectors have been moved or scrapped since the date of recording.

During this process I've come across some cases of double inventory. Even Philips made mistakes. There are two copies of the oak wood box for the spares and at least two #2171 out there. It could misreading of the plates.