The Doctor's Gladstone bag

The Doctor's Gladstone bag was used by the Seventh and later Eighth Doctor on several occasions.

The Seventh Doctor lost a Gladstone bag after fleeing from a swarm of prototype robots. (PROSE: Companion Piece)

When dreaming of adventures with John and Gillian, the Eighth Doctor carried the bag. When he woke up, he found it under the console in the TARDIS. (COMIC: The Land of Happy Endings)

The Eighth Doctor used the Gladstone bag to carry the tools he needed to arm the nuclear bomb inside Fatboy. (PROSE: Eater of Wasps) The bag contained medical equipment including a stethoscope and healing ointment. (PROSE: Timeless) It later contained Gobstoppers, Fizz Bombs, Jelly Babies, an Eagle comic from the 1950s, and a psionic beam locator. (PROSE: The Deadstone Memorial)