Just uploaded quite an extensive 1961/62 (?) Brochure here.
I am pretty sure this date is about right as the brochure
mentions that the Coureur 66 calipers have just been released,
and as far as I know they were available from 1961.
"Tearing along the traffic-burdened thoroughfare with staring eyeball and reeking frame, this insane demon shoots past men,woman and children, with nothing to announce his coming or mark his passage save a faint hum and a curl of dust." Letter to a Hawkes Bay Newspaper dated 9 December 1898