More on deep search....
I don't know if these would be "do-able", but here goes:
1. Could deep search be enabled with "wildcard" characters (i.e. an * which could be any letter or single digit number) which would allow date searches that would show a range of results? A date search for 3** would show all coins with a date in the 300-399 range.
2. Can we add search fields to deep search which would allow us to search by:
Exergue - "BSIS" shows all Siscia, officina "B" coins, etc.
Size - "17" would allow you to see all 17mm coins, etc.
Field Marks - "B" would show all coins with B in their fields, etc.