Dim.: 13,5 x 13 cm (open)Dim.: 13,5 x 7 cm (closed) Provenance:- Acquired before WOI (1914-1918).- Thence by descent in a Belgian private collection. -- Lot subject to CITES-regulation. Accompanied by a certificate from an external appraiser, allowing a sale in the European Union only. For exporting outside of the European Union, a CITES export permit must be obtained. We can obtain this for the prospective buyers, please inquire. Buyers are responsible for adhering to local import rules. This lot is not available for buyers in the USA.