Hi Allan. I don't agree with you on this one. The Chinese tended to make fairly literal - if technically flawed - copies, and the two ships shown on these weights are not very similar. Both are full rigged three mast ships (on the images I have seen - but I do not have one I can post here), but there are big differences in design (as well as Kane using frit, whereas the Chinese painted in oxides on a white plaque):
* The Chinese weights show a vessel drawn from off the port bow, whereas the Kane weights are from the beam (ie sideways on);
* The Chinese weights have two foresails, and then 4 / 4 / 3 main sails, whereas the Kane weights have two foresails, 3 /2 /2 main sails, and main and mizen staysails. Also, there appears to be a 'fore-and-aft' sail on the 3rd mast of the Kane ships ( a 'jigger spanker', I believe !) as well as square sails.
* The Kane ships have pennants on the top of two masts.
I do not think the Chinese copied the Kane ship. My guess is that they copied a drawing, photograph or painting of a clipper.