Prendeville, J.: Explanatory catalogue of the proof-impressions of the antique gems possessed by the late Prince Poniatowski and now in the possession of John Tyrrell, Esq. (1841): 1118
Monson, (Lord)
Christie's, London: 27.06.1854; lot 142 ?
Christie's, London: June 9, 1851, lot 67 ?
Comments: Photo, impression and identification: R. Schmidt. The preceding record, T1117, has a similar description and the same Kromos signature. Only when the second gem emerges will know if there is a progression of action and prove, that the identifcation is indeed correct. See also 1839-1441. This also affects the Monson provenance.
Link to this record using the address https://www.beazley.ox.ac.uk/record/050649CD-37B0-4FA3-A91C-A6FFB56484CE