I have a few references concerning “Eley International Match”, but have to caution you of their veracity. In other words, I can’t claim I’m certain to the degree I would like to be.
One source reports it was a relatively new offering in 1996. That same source states it was priced at $10/100 vs $10/100 for “Eley Match Extra”, $6/100 for “Eley Target Rifle”, $16/100 for “Eley Tenex”, etc.
If the above is correct, we can make the assumption it was graded Eley Match (Black Box) at the factory and relabeled as “International Match” as they’ve done various times in the past (plus the description “Match” in the name). For example….the Match USA which is available from several venders.
I might also caution you that different lot #’s can often have more of an effect on accuracy than the grading system used by Eley to determine its offerings.
Landy