As far as I can work out the livery sequence was:
1885- Elaborate claret livery applied by Dubs and Co before delivery
Mid-1890s - simpler claret livery without the twiddly bits around the nameplates but with red-black-red lining.
1906-22 - Claret; according to Hendry and Hendry.
1922 - Dark Green; with black and yellow or red lining. The then current version of the original IMR livery used until about 1932.
1943 - Mid-Green, as seen in the earliest colour views of the IMR of 1949. Seems to have been a Depression era simplification of the original livery.
Early-50s - unlined Indian Red
1967 - Ailsa Green; black and white lining
1968 - Maroon with black lining edged red.
1995 - as per 1885
2002 - Blue with red lining
2013 - ???? hopefully the simpler version of MNR livery, which I prefer to the (over) elaborate. Then again maybe they'll paint her black with red and white lining and p.o. the locals
BTW, its a bit crowded at Douglas Works at the moment as they have No.11'a boiler awaiting reconditioning, and No.15's is in the shop awaiting return to its frames, which have recently returned from Keefe's. No.4 looks as though she is being prepared for, or as had, her annual boiler test and inspection as her dome cover was off and the lagging removed from around the dome last Wednesday. F27 is in the carriage shop for a heavy overhaul for use as the support vehicle to the gangway-fitted bar set F29-32 and 35. She is due to get a steel frame to replace her wooden one which is cream-crackered.
Peter in AZ
(Just returned from IoM)