The selection of glass is what differentiates one Tiffany lamp from another of the same model. This gorgeous 16" diameter Crocus lamp has very special mottled glass. It's dash-numbered 9, indicating it was part of a limited run of lamps, usually 10 or fewer, where the glass was carefully chosen. Add a wonderful ribbed library base with a fabulous original patina and you've got a superb lamp. Signed and numbered on both the shade and base. Very few, if any, hairline cracks. No restoration. Very fairly priced.