kˈæptɪn kˈaʊpɚ kˈoʊlz, ɐ lˈɔŋtˈaɪm ˈædvəkˌeɪt ʌv tˈɜːɹɪtmˈaʊntᵻd ˈɑːɹməmənt, hæd pɹədˈuːst ɐ pɹəpˈoʊzəl ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti nˈaɪn wˈɪtʃ, wˌaɪl nˌɑːt bˌiːɪŋ ɐksˈɛptᵻd æz pɹədˈuːst, fˈɔːɹmd ðə bˈeɪsɪs fɚðə dɪzˈaɪn kˈɑːnsɛpt ʌv pɹˈɪns ˈælbɚt.
Captain Cowper Coles, a long-time advocate of turret-mounted armament, had produced a proposal in 1859 which, while not being accepted as produced, formed the basis for the design concept of Prince Albert.