26C, D, S
Just a quick note: It is my understanding that the factory designated the Original 26 as a "C". Owners have made a rather unofficial sub designation within that framework by designating "D" for daggerboard and "S" for swingkeel.Within the Hull ID, the first three letters are the manufacturer, eg: MAC.The next letter indicates model (the 26C/D/S is a "W" model.The next four digits indicate hull#.The next two integers are the month of manufacture (A-L= Jan. thru Sept. are followed by the last number of the year of manufacture)The last two integers are the last two numbers of the year of manufacture, eg. 87 through 95.