This is the lefthand of two photos placed side by side in WR Fell's album of 1928-29, which carry the legend "Departure of Captain Glencross". John Buller Glencross ceded his command of HMS Titania and the 4th Submarine Flotilla in February 1929. These two photos should join the thread https://gwulo.com/node/46493 begun by Jon Glencross, who posted an enquiry about his grandfather.