Some time ago, someone was looking for pieces of a BC-929A like a scale graticule. There is a basket case on eBay now, which has undergone much butchery and is misidentified, but has some apparently good parts: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2218505837&category=38034 It's not mine, BTW. -John