No, they're the three Graces.
Bit lardy for my tastes, but I suppose they would offer 3 ports in a storm 7 they would have been considered desirable in the 18th C.
These ones are more my sort...
http://www3.telus.net/public/jerdavi...ree-Graces.jpg
Or perhaps these??..
http://www.tomcubbage.com/offsite/bw...n-santa-fe.jpg