CONSTANTINOPLE. 25 Actions de F500=£20. black, green. #4000. No 481376-400. Folds. Founded in 1856, with essentially English capital. Capital increased 1863 with French capital. The bank developed into a state bank, with its business office in Constantinople but direction in London and Paris. From 1925, in the new Turkish Republic, it had to change its name, and became Ottoman Bankasi, or Ottoman Bank. Today one of Turkey's largest banks. Text in Turkish, French, English. Very decorative border of Islamic style. This is an extremely rare 25-share certificate: only once before seen by us.