207/208 still had the ad this morning when I rode it.
Depot staff like to do pasting and removing of window adverts in
the afternoon when the train is in the depot. Thus sometimes in the
morning the train is ad-less, then in the evening or during
LTE the train appears with a new advert, and vice versa.
209/210 and 215/216 were ad-less ytd morning, but
both appeared bearing new window ads in the evening.