Alderfer's

501 Fairgrounds Road

Hatfield, PA, 19440, USA

Phone: 215.393.3000

FAX: 215.368.9055

Antiquorum - Geneva

3 rue du Mont-Blanc

Geneva, , 1201, Switzerland

Phone: 41.22.909.2850

FAX: 41.22.909.2860

Bonhams - Bond St.

101 New Bond Street

London, , W1S 1SR, United Kingdom

Phone: 44 020 7447 7447

FAX: 44 020 7447 7400

Christie's Geneva

12 Rue du Mont-Blanc

1201 Geneva, , , Switzerland

Phone: 41.22.319.1766

FAX: 41.22.319.1767

Christie's Hong Kong

6/F The Henderson, 2 Murray Road

Central Hong Kong, , , China

Phone: 852.2760.1766

FAX: 852.2973.0368

Christie's Los Angeles

360 North Camden Drive

Beverly Hills, CA, 90210, USA

Phone: 310.385.2600

FAX: 310.385.0247

Christie's London

8 King Street

St. James, London, , SWIY 6QT, UK

Phone: 44.(0)20.7839 9060

FAX: 44.(0)20.7839.2311

Christie's Zurich

Steinwiesplatz 26

Zurich, , 8032, Switzerland

Phone: 41 (0)44 268 1010

FAX: +41 (0)44 268 1011

Dupuis Jewellery Auctioneers

1200 Bay Street, 9th Floor

Toronto, Ontario, , M5R 2A5, Canada

Phone: 416.968.7500

FAX: 416.968.7739

Haycraft Auction Co., Inc.

Rt 51 N Box 79

Wapella, IL, 61777, USA

Phone: 217.935.6286

FAX: 217.935.3305