Just came upon this thread while searching for information about all locos fitted with condensers for operating in the London Underground system. I note you mention the 5 Massey Bromley E10 locos as 59, 101, 233, 586 & 588 and mention it as I have found a photo of 233 condenser fitted and also one of 101 so fitted. Do we know which others were so fitted later? Is there a listing of which locos were so fitted and when? I have data on more than 700 locos so fitted between 1863 and 1901 but no data on the LB&SCR locos so fitted except a photo of A1x 677 appears so fitted but with small pipes. Some were used on the East London Line. Does anyone know which ones? SER 180 was so fitted but I have no info on the rest of the Q class.
This has been edited due to an error on my part so the original question has changed.
The attached photos are not mine but for reference only, the first is in the GERS Collection 7026 338 and the second is as stated on the image.