The craftsman who copied the Colonial 8-Reales did a poor job of transcription and the spelling is incorrect or unreadable in some areas. Depending on how the inscription is read, it is likely that this bottle copies a Colonial 8-Reales minted in either Potosi (present-day Bolivia) or Santiago (Chile). See T. Calico, X. Calico and J. Tino, Monedas Espanolas Desde Juana Y Carlos A Isobel II, 1504 A 1868, 6 Edicion, Barcelona, 1985, p. 373 and 374

For a very similar example see Christie's New York, The Reif Collection of Chinese Snuff Bottles, October 18, 1993, lot 118

For a discussion of this group see Hugh Moss, Chinese Snuff Bottles of the Silica or Quartz Group, London, 1971, pp. 75-78