Two Evelyn Design, "Potent Star" & "Sunnyside Up":

 

Potent Star, US 20514
à jour au: 1976
1976, plan Evelyn,

1976 June, US Quarter, Hilton Road: 2 - 6 - 3 - 1 - 4 = 4e/24
QUARTER TON CUP, Corpus Christi, Texas: 8e/36, Ben HALL & EVELYN
? "Bateaux":

Novembre "Les Cahiers du Yachting",

Picture from Dutch QT Facebook 2016:

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Sunnyside Up, US 14639
à jour au: 1976
1976, plan Evelyn,

 

1976 June, US Quarter, Hilton Road: 3 - 23 - 13 - 12 - dnf = 11e/24, Howard PRICE
QUARTER TON CUP, Corpus Christi, Texas: 25e/36, P.A. JONKER