1. ‘Trigonometrical Plan of the Back-water of Debai by Lieut.t R. Cogan under the direction of Lt. J.M. Guy, H.C.Marine. 1822. Drawn by M. Houghton’ Contributor: Robert Cogan (surveyor)John M. Guy (surveyor)Michael Houghton (artist) Date: 1822/1822 Language: EnglishArabic Geographic region: Debai Extent: 1 map
2. ‘Trigonometrical Plan of the Back-water at Sharja by Lieut.t R. Cogan under the direction of Lt. J.M. Guy, H.C.Marine. 1822’ Contributor: Robert Cogan (surveyor)Michael Houghton (artist)John M. Guy (surveyor) Date: 1822/1822 Language: EnglishArabic Geographic region: Sharjah Extent: 1 map
3. ‘Trigonometrical Plan of the Entrance of the Back-water at Aymaun by Lieut.t R. Cogan under the direction of Lt. J.M. Guy, H.C. Marine. 1822. Drawn by M. Houghton’ Contributor: Robert Cogan (surveyor)John M. Guy (surveyor)Michael Houghton (artist) Date: 1822/1822 Language: EnglishArabic Geographic region: Aymaun Extent: 1 map
