One side broken. Front, back and parts of three sides appear to be preserved.
Subject unclear. Clear traces of three sides of rectangle can be seen.
Possibly represents tail of a winged animal.
Back roughly ... 2 August 1973 ... Well in Room 6, box 61, layer I ... Leica, 89-18-7, 89-18-8, 93-1-3, 93-1-4, 93-1-5, 93-1-6