Useful Links
Antiquarian Horological Society (AHS) www.ahsoc.org
British Horological Institute (BHI) www.bhi.co.uk
National Association of Watch and Clock Collectors (NAWCC) www.nawcc.org
Worshipful Company of Clockmakers (WCC) www.clockmakers.org
American watchmakers-clockmakers Association (AWI) www.awi-net.org
American Watchmakers-Clockmakers Institute www.awci.com
Canadian Personal Property Appraisers Group (CPPAG) www.cppag.com
Three O'clock Publishing www.grettonbook.com