The Steam 141 TB 407 of Ajecta association running in bridge on the Flamboin/Montereau old line who's crossing the High speed line 1 where a Duplex trainset is going to south at 300 Km/h !
This Steam have assumed a spécial train from Longueville (on the Line 4) to Montereau via Flamboin station.
Ajecta association located near Paris in Longueville (77) preserves old steam machines... (www.ajecta.org)