It was a delta-v opposite to the direction of travel and that slowed Messenger enough so the relatively weak gravity of Mercury could capture the spacecraft and put it into an elliptical orbit around the planet rather than the Sun.
To race aboard Mariquita is to travel back a century, when wealthy yachtsmen such as King George V and Sir Thomas Lipton dueled through the summer on outsize boats that needed 20 sailors just to leave the dock.
His Gibson Flying V guitar which he performed with at the festival, his written travel directions to the show and a "Westerner" hat which he often wore on stage will be part of the exhibition.