Key according to "Kennicott number" with links to Ktiv catalog (and many digitized manuscripts) - Updated June 2020
Benjamin Kennicott, Vetus Testamentum Hebraicum cum variis lectionibus, vol. 1 (Oxford 1776)
Benjamin Kennicott, Vetus Testamentum Hebraicum cum variis lectionibus, vol. 2 (Oxford 1780)