A Concorde by itself is nice enough; one that is kitted with a Mavic group set (though we can’t tell if it’s tout Mavic) is a compelling proposition.
Concord Aquila Dutch/Italian Roadbike – $500 (East)
56cm Roadbike made in Italy by ciocc for Concorde, a Dutch firm.
Columbus frame with campagnolo dropouts.
Good mechanical shape.