The certification side says to precede the number with 1 for CD, etc. - 9999 -> 19999. So where to the very small #s fall on the timeline (e.g. 500s 600s 700s)?
-----Burton
50+ year / Life / Emeritus
ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)
Author: 3rd Edition of the Sample Slabs book,
https://www.sampleslabs.info/