Phil, sorry I can't help you with the top supplier you are asking about, but since the subject is 1940-8 Lincolns, I just completed my 47 Zephyr Convertible (see attachment)and did not use any of the original window or top cylinders if any one needs them. I also have the door window mechanisms and the front vent glass regulators and handles complete. Also have complete rechromed front bumber assembly. I have a few other items but I need to get a more complete inventory to post.