There are differences in opinion with Errors and Freaks, Oddities. In general Varieties Include Errors,Freaks and Oddities, most of time these difference you examine at later time after you have collected the Item. I am asking this is as I have made Database near completion should this be included ? or just to keep some of the fields or notes area let to jotting down. I felt if it included as some sort of form layout either check mark or pull up fields. Varieties would be out of these Issued Specifications of that particular Stamp Issue by Issuing authority. e.g. Paper,Design,Printing,Printing Process, Separations, Perforations,Perforation Types,Gum Type,Gumming,Watermarks, Sec.marks,Tagging,Cancels,Size,Shape etc. I may be missing some. what is your opinion?
Space for any additional information re error, flaw or oddity must be available, though most stamps may not have this spaced filled. It is damn handy when more info is there.