Which of course means those 19 serial numbers probably came earlier. Lower numbers will always appear on earlier guitars, higher numbers on later guitars.Remember that 20 guitars will, of course, not begin with a 9.
They made some to unveil in January at NAMM and tried to be ready to fill orders immediately. Furthermore, some less popular models may have sat on the shelf either at the factory or at the dealer for years before being sold as new.Technically, they are new, since they'venever been sold.After the war that method continued, but some guitars had the serial number embossed on the headstock.With the advent of labels in the late '40s, the serial number is usually found on the label, which is usually visible through the soundhole on hollowbody models.Each of them can be used to accurately pinpoint the age of a guitar, if you have the correct information.
Unfortunately, correct information can be very difficult to come by.
In 1973, the 2nd iteration of the Baldwin era Gretsch label was introduced.
These labels were once again a Black and White rectangle, and had “Gretsch Guitars” printed on them, as well as a line for the Baldwin model number and the date coded serial number.
On solidbodies, it's usually inside the control cavity.
Note also that Gretsch, like the Detroit automakers, had model years, so in the same way a '57 Thunderbird may have been made in 1956, a '57 White Falcon may have been made earlier.
(Numbers are consecutive, but all number/year matches are approximate) Be aware that these numbers, while considered by most authorities to be accurate, may be substantially off. The next three digits are the model number, without the 6 at the beginning.