half-state

At one o'clock the Lord Mayor in his half-state carriage with four horses and outriders, the Sheriffs in their state carriages, and some of the Aldermen in theirs, set out in procession for the Swan Tavern, Stratford.

Lady Judith Cohen Montefiore - Diaries of Sir Moses and Lady Montefiore, Volume I: Comprising Their Life and Work as Recorded in Their Diaries: From 1812 to 1883