Nice Any pictures handy? I’m guessing it must be rev LN-a2
I revisited the BCW reverse die chronology. Mine has Lis 29, which suggests the later die unless, of course, they switched back to Lis 26 after Lis 29 broke, which happened in less than a month, so quite feasible? The 1567 PM Lion rev dies were apparently only in use during May and June that year, so the margins of which came first are extremely fine to say the least.
Really interesting couple of paragraphs beneath the Lion die-pairing section in BCW, which discusses it. Also in that section they propose only around 4-10 of the ‘true’ REGNA (rather than rotation anomalies) would remain in existence, so maybe not that common?