David,
The important
provenance for your
fine sestertius is Santamaria, 4 June 1952, Signorelli
Collection Part II, lot 1256, pl. XX.
On the basis of this Santamaria photo,
Kraay included the coin in
his unpublished die
catalogue, no. 126b, alongside
BMC 757 which is from the same dies, as Alberto observed. Kraay's illustrations of the relevant
obv. and
rev. dies derive from other specimens than yours, however.
The Santamaria photo was also reproduced by Cayón in two of
his compilations:
Los sestercios del Imperio Romano,
vol. I, no. 39, p. 254
Compendio de las monedas del Imperio Romano,
vol. I, p. 212, no. 91.
