F-line to Dudley via Park wrote:So 3686 takes the prize as the very last original-paint unit left in service. Get your photos while you can.Kudos to K-S for building such dependable cars, but I've refused to photograph rustbuckets like 3686 for the last few years. I have plenty of images of Type 7's in the original scheme before they developed those giant rust blotches, and I'd rather not remember that the MBTA allowed cars to run in such decrepit condition for so long.