The knives shown are fairly recent ones, certainly within the last 5 years or so. Therefore they will be at RC-59. The third knife is a "Mybush" model which is basically the Woodlore blade with my own (longer) hand shape. This one has a stabilised burl handle.
I did number the first knives with a Burgess Vibratool (sp.?). JD's knife is No. 4 of 1994. Nothing at all to do with quarters of the year. I was only making a handful a year back then as they were supposed to be for folk attending Ray's courses. Can't remember how many were numbered as I lost count when I was making some to be presented to village elders who gave permission for Ray to film in their area.
I have always considered numbering knives to be pretentious BS and Ray agreed for what are essentially working knives.