E (Engineering) Minutes of the Tank Board, chaired by Jack Seely (later Lord Mottistone), Deputy Minister of Munitions. Other board members included Sir Eustace Tennyson d'Eyncourt, Controller General of Tank Design ; Colonel Sir Albert Stern, Controller-General of Tank Production; Major-General Sir William Furse; Lt-Col. J F C Fuller; Sir Percival Perry, Controller of Supply; Admiral Sir Reginald Bacon.