Ephemera and correspondence, 1957-2008, n.d.
- Ephemera printed by or on behalf of the Gehenna Press and sent to Philip Isaacson, including ephemera celebrating Baskin family events like birth announcements, 1964-1997, n.d.
- Ephemera (mainly catalogues and invitations) printed by third party printers, often for exhibitions of Leonard Baskin or Gehenna Press artwork, 1957-2008, n.d.
- Printed ephemera commissioned by the Isaacson family from the Gehenna Press, together with an original Leonard Baskin drawing design for an item of Isaacson ephemera, 1974, n.d.
- Letters addressed to Philip Isaacson from the Baskin family, together with invitations to Leonard Baskin/Gehenna Press exhibitions, 1971-2007, n.d.
- Philip Isaacson's correspondence with dealers and suppliers concerning his Gehenna Press purchases, together with invoices, 1967-1999, n.d.
- 1957-2008, n.d.