We see the introduction of the portable cone of silence.
Max looks in the violin for the name of Mr. Big and reads "Stradivarius". There are some 640 authentic Strads bearing the label "Antonius Stradivarius Cremonensis" and several thousand lesser violins (some very poorly made) with the same labeling.
Near the end of the episode as Max yanks the bomb out of the piano, Wolenska refers to him as "Mr. Smart." Wolenska had been under the impression that #86 was really "Gregory Wilcox" and by rights should have been referring to Max as such.