Adrian Rollini Trio - Early 30th - 4 mallets!

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I just found this piture on Face Book, posted by John Pietaro and found very interesting to see certainly the first 4 mallet player in Adrian Rollini... that early!
From a comment on the picture by Paul Hansen "Rollini's piano chops gave him a very unique approach to early 4 mallet technique".
Still I learned in Gary's' book that Red Norvo had started 4 mallet and finally switched back to 2. The period seems roughly the same. Any idea?