A few things happened
1 - '89-90, from small block to big block without NHL logo, NHL logo added by end of season
2 - Center Ice Collection starts marketing, '91 jerseys have 'Ultrafil' or 'Air-Knit' tagging only (Rangers are only team with 'CCM' tagging (and MIC, MIUS, Assembled in...but whole other ballgame) and still mesh)
3 - Numbering tag appears circa end of '91, new jerseys for '91-92 have 'em
4 - Circa end of '93, new 'CCM' tags started replacing the previous 'Ultrafil' or 'Air-Knit'
5 - Circa '95 size tags only in collar (for *some* teams) and those have a Maska hip tag
So, for example, we see this collar and '93 patch on a Roy, right?
Simply by looking at the size tag we know it's '95 on and there's a hip tag without even looking