I am afraid this does not answer your enquiry but is I think of general interest for anyone interested in Cobles.

I was walking around Bridlington harbour yesterday and came across a mini museum devoted to cobles. it was only three small rooms but they were full of coble memorabilia. Several model cobles as well as other local fishing vessels and a local grab dredger. Numerous photos and other ephemera as well as various bits and pieces all to do with cobles. it's run by volunteers from the Bridlington Sailing Coble Preservation Society. Entry is free, but donations are welcome. They also run an event called the Bridlington Sailing Coble Festival which is in July this year.

There were a number of working cobles in the harbour as well as two beautifully preserved sailing cobles.

As somebody interested in all traditional sailing/working craft, I found this little museum well worth visiting and thoroughly recommend a visit if you are in the area.