Saqqara. Pyramid of Pepi (Pepy) I.
Caption reads:
'In Pyramid of Pepi, part of 478.
In the wall is built in, as a common stone, a slab with clumsy
figures on it, badly colored; this is the only known example
of aprentice's practise, of which so much was required.'

Also label for 'learners slab.'.