Identification
| ID in this catalogue | WCO 21 |
| Type | Outflow water clock |
| Current Location | Oriental Institute Museum, Chicago |
| Catalogue Numbers | OIM AE7125 |
| Provenance | Egypt |
| Date | 282 - 246 BCE |
| Dimensions | Height approximately 10.2 cm; width approximately 13.6 cm; thickness 3.75 cm |
| Material | Black stone, possibly granite |
| Condition | Fragmented piece |
| Publications | Borchardt, (1920); Sloley, (1924); Sloley, (1931); Cotterell et al. (1986); Clagett, (1995); Ritner, (2016) |
Content
| External registers | Probably three |
| External upper band of text | Yes |
| External lower band(s) of text | Unknown |
| Exterior Astronomical Diagram | Yes. The fragment preserves part of the barque of Jupiter. |
| Rim | Inscription in ?Nabatean. |
| Interior markings | Columns of dots, with the incised fill line visible. |
| Other features |
Notes
This fragment has recently been carefully discussed by Ritner (2016).
See also the entry in: Schomberg, A., Berlin Waterclock Project, ID 38 Oriental Institute 7125, 2019, Edition Topoi, DOI: 10.17171/2-10-32
Images
See Ritner (2016).