Vintage yarn conversion

[LadyVargas]

Hiya!

Long time listener, first time caller, as the saying goes! I have prowled the forum, but just became a member.

I have a great vintage 50's pattern that calls for Marriner's Heritage or Halyard 3-ply wool blend. Obviously, this yarn is no longer available. I have spoken with my knit experts at my local yarn shop, who recommend I find out what yardage/meters an original skein of this yarn came in, to make sure I get enough material, since today's equivalent of the 3-ply yarn will likely not weigh the same g/oz.

Does anyone have an old Marriner's catalog out there, or an old label, to look up the length of yarn in the skein? I have found lots of resources for vintage US yarns, but very few with UK yarns.

Thanks in Advance!
LV