Linen ID?

I was recently sold a 50 yd length of old fishing line that was claimed to by white/green speck Cortland linen. The line was reportedly obtained from a spool with Cortland labels. I like the look and feel of the line. But I got a bit curious about it. The line is 0.031” in diameter measured by both digital and mechanical micrometers. It is comprised of three threads each of which measures ~0.016”, one of which contains a green sub-strand. My understanding is that Cortland and Penn white/green speck linens are 0.025” (please let me know if I am misinformed). I wrote to Cortland and showed the enclosed pictures. Their product manager responded with her belief that this line was not made by their company. Trying to remain open-minded about its identity, perhaps current workers at Cortland are not fully aware of characteristics of products produced by their company >40 years ago.

Does anybody on this forum have an idea the origin and make up of this old fishing line?
Is it actually Cortland?
Other ideas about potential manufacturers?
Is it flax linen?
Any experiences using line that is this thick for cue wraps?
How deep would the wrap groove need to be cut?


Thanks in advance for any insights.
Greg

KJ Cues said:

Done correctly, this should be a nice wrap.

KJ

Click to expand...

Thanks for the response. I need to decide if I keep or return it. My biggest hesitation is the depth of the groove. For the right cue, it would look great. I am not so sure if I own that cue.

Thanks for the responses. My belief is that my line is 12-thread (3x4) cable-laid line made by a company other than Cortland.