Thanks for your interest guys.
They are based to the DBA 20/25mm size at 60mm frontage. Depth as needed by the figures, gave up on 20mm deep a long time ago. Numbers of figures to bases tends still to be to DBA but the DBM lists can give more insight.
'The time has come" The walrus said. "To talk of many things: Of shoes--and ships--and sealing-wax--Of cabbages--and kings--And why the sea is boiling hot--And whether pigs have wings."