Searching on year
Use these fields to search for single lots emitted a specific year or during a period.
With both start and end values: All lots emitted during the period are found (1809
& 1844 returns lots from 1809-1944)
Start value only: Lots with this year are found (1936 & empty returns lots emitted 1936)
End value only: All lots emitted up to this year are found (empty & 1850 returns lots emitted until 1850)
Note! This function only finds singles, not collections).