Possible Clues:

• Three-horse wagon
• Supply kit, not primarily for a team of 3 15 15s?
• The type of sleigh portrayed in one movement of Prokoviev’s Lieutenant Kijé suite
• Russian group of three?
• Middle Eastern Republic gets kick start from a group of financiers
• Triumvirate, from the Russian
• Sleigh pulled by a team of horses
• Constables etc standing to arrest boor in carriage
• Yob in train, not in horse-drawn carriage
• Smolensk threesome