165027 & 165036 pass Charlton-on-Otmoor on 27 October 2019 with the 1T15 08:35 Marylebone to Oxford Chiltern Railways service. Note the slight variation in liveries, with the leading two car unit in Chiltern's latest colour scheme, and the three car unit in the original version. The white base is the same on both units, but the rear one obviously hasn't seen the washer in a while!