The tablets are from the Roman Fort of Vindolanda in Northern England.
Some of the tablets are from the second Vindolanda Publication and have been published on the Vindolanda Tablets Online website:
Bowman, A. and Thomas, D. 1994. “The Vindolanda Writing Tablets (Tabulae Vindolandenses II)“, London: British Museum Press
The other half of the tablets are from the third Vindolanda publication and these have not been published online before now:
Bowman, A. and Thomas, D. 2003. “The Vindolanda writing-tablets (Tabulae Vindolandenses). Vol.3“, London: British Museum