Document No. 146 referred to an extract from the Bushire Residency Diary (Persian) No. 11 of 1930 reporting the departure on 26 November of the Persian officials captain Ibrahim and Mr. Salim Pio via the overland route towards Port Said. There they intended to pick up the Persian boat Chalcheleh recently bought from Germany for 20,000 Ts. However it was doubtful if the boat was able to reach Bushire [Bushehr, Iran] on its own. A telegram No. 71 sent by the Political Agent Muscat on 16 March 1931 No. 71 to the Political Resident Bushire reported that a letter sent from Bushire for her captain arrived and if her movements were known. On 26 March sent the Political Agency&H.B.M.’s Consulate at Muscat a letter D.O. No. 91-C to lieutenant colonel H.V. Biscoe, Polical resident in the Persian Gulf referring to the telegram. He wrote that the arrival of Persian gunboats on the Gulf if that ever would happen would cause some awkward questions. The Muscat State was not pleased that such ships got free entry to Oman harbours. The Arabs disliked the Persians and (violent) incidents were to be expected. To his knowledge was Persia still claiming Muscat including demanding travel papers from travelers going to Muscat similar to the papers needed when going form one part to another within Persia. He suggested that the Muscat State did not permit Persian gunboats enter Oman waters as long as the claim existed and after giving up that claim only after week’s notice before visiting or what ever were the requirements for British sloops. On 21 March he was informed that the movements of the Chachela were unknown except for leaving Port Said 22 days earlier. A letter from Karachi dated 3 April D.O. No. 21 by Biscoe to the Political Agent Muscat (major T.C.W. Fowle) denied that Persia still hold on to the claims but Persia did not recognize the Muscat government and for this reason refused documents issued by this government. Dealing with the Chalcheleh the story complete differs. It was not a Persian gunboat at all but a launch with a length of about 50 feet bought by the Persian government from German to be used on the Caspian. Russia refused permission to go via the Volga to her destination so was chosen for Bushire. It was not a vessel of the projected Persian navy and he was not familiar with her future tasks , but he could imagine a conversion into a coastal patrol boat for the customs but regarded her size he doubted if she would visit the Arabian coast.
Source
Quatar Digital Library. File 9/21 Naval&Shipping: Persian Navy-activities&visits to Arab ports. Original British Library: India Office Records and Private Papers. IOR/R/15/6/319.