Yes, it is a rather literary type of 2nd/3rd conditional sentence, in which 'if' is omitted and subject and verb are inverted.
Note, however, that the transformation is possible only where the main verb of the if-clause is 'were, had' or 'should'. Thus while e.g.
If we were to go early, we could get a good seat.
could be transformed to
Were we to go early, ....
If we went there early, we could get a seat.
cannot be changed to
*Went we there early,...
Student or Learner