“The bidding yesterday lasted less than four minutes. The rare Stradivarius violin went for a high — but not a record — price of $2.4 million.” What the anonymous buyer gets “is what is known as a ‘late period’ Stradivarius, which is not from Stradivari’s ‘golden period’ of 1700 to 1720. The record $3.5 million price last year was for such a golden violin.”