This is the one type of sound holes which has to be placed aside for a moment; the other type is of an opposite kind and very often to be seen accompanying the longer looking pattern of Carlo Bergonzi: it is free in design, having the upper and lower wings fully developed, that is, the straight cut of the wing is of full length, this individuality coming from Stradivari.
It is this portion of the details of the design that has led so many Students of the works of the Cremonese masters astray, they see the Stradivarian design, or we may call it peculiarity, and too hastily conclude as to its being the actual work of hand of the master. A little further consideration of the adjoining portions of the sound holes would bring to mind how little Stradivari was disposed towards any thinness of the opening out of the part leading from the wing to the nicks: if he had a tendency one way or the other, it would be towards more fulness, but his ideal being a beautiful equilibrium of all parts, this is clearly a point telling against the work as coming from his hand entirely. There is another part, too, that Stradivari seems to have most earnestly avoided, that of making the top portion of the sound hole design reach over towards the centre, somewhat after the tendency of Andrea Guarneri, this causes the lower part to seem turned up more suddenly, it is, however, only by contrast between the two parts that this is so. Carlo Bergonzi's sound holes are more sprightly and vertical, and with their more mature style should not be confused with those of the preceding maker. Here, then, are two distinct types of sound holes independently of those referred to of earlier periods, to be seen attached to violins that have perhaps through several generations of owners been attributed to Antonio Stradivari, and in consequence been sold again and again for large sums. Here is evidence of there being something in a name. Had these instruments been carefully and properly analysed, with a strict regard to the habit of the master in respect of intention in design and execution at early and later periods, the mistake would not have occurred. The conclusions rushed at seem to have been that there was the proper age of the instrument, the varnish was of fine Cremonese type, the pattern and sound holes thought to be "Straddy," therefore it must be a Stradivari.