Gravity Falls - 2012 Bottomless Pit 1-14 was released on:
USA: 29 June 2012 (San Diego Comic-Con)
USA: 1 March 2013
The Bottomless Pit - 1915 was released on: USA: 29 January 1915
Welcome to Man-Bottomless - 2006 was released on: USA: 6 March 2006 (limited)
Weird Connections - 2008 Bottomless Bowl of Soup was released on: USA: 24 February 2009
Gravity Falls - 2012 Irrational Treasure 1-8 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 17 August 2012
Gravity Falls - 2012 Little Dipper 1-11 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 28 September 2012
Gravity Falls - 2012 Gideon Rises 1-20 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 2 August 2013
Total Onslaught - 2004 The Beast from the Bottomless Pit 1-10 was released on: USA: 2004
Target - 1958 Murder Is a Bottomless Well 1-17 was released on: USA: 4 July 1958
Gravity Falls - 2012 Land Before Swine 1-18 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 28 June 2013
Gravity Falls - 2012 The Hand That Rocks the Mabel 1-4 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 6 July 2012
Gravity Falls - 2012 The Time Traveler's Pig 1-9 was released on: USA: 29 June 2012 (San Diego Comic-Con) USA: 24 August 2012
The Wild Wild West - 1965 The Night of the Bottomless Pit - 2.8 was released on: USA: 4 November 1966