Herreshoff Designs may give you better info (might want to call them) but as far as I know there was just one H18 mold - and was used for the America, Eagle, Launch, scout and Pilot - with different deck/liner molds to create the different versions. The last I heard the molds are down in Florida at Com-Pac Yachts - who used this mold to create their 20' "Horizon Cat" (highly modified). I had heard the original mold is in very bad shape and could not be used again (at least one "one off" HA was built from this mold in the 1990's down there but never as production). I have also heard that several folks have offered to buy it and have been told no - but that is hearsay so take with a grain of salt...