Can anyone tell me whether at any stage of her career, UC 75 laid mines in the Firth of Clyde. I am aware that three fields were laid in the Firth of Clyde in 1917 by UC boats. I know that Steinbrinck mined the sector but because my photo of Spindler's chart (Stizze 26) is illegible, I am unable to tell if UC 75 was one of the boats involved. Can anyone out there clarify please ?