I just downloaded a bunch of ES data from the ES tick sharing thread. The data goes back to 2003, however my NT Instrument Manager's "Contract Months" for ES only goes back to ES 03-05.
I'd like to include ES 03-03 through ES 12-04 in my list of Contract Months, however I need to know the rollover dates and offsets for these months.
Does anyone know where I can find a list of historic rollover dates and contracts for older expiries?