They did not rate rod weights with numbers when that rod was made. Rod weight was with a letter such as c weight. I do not remember ever seeing a 3 weight cane rod from that period. Most cane flyrods started in the 5 - 6 weight and higher. This is how we would call them by todays standard.I guess it was in the late 60s early 70s we started with the number system as the standard for line-rod weight.