There should be a space after the 1st digit with the 4 and 5 digit serial numbers, and no space with the 6 digit numbers.
Numbers were reused during this period, and in many cases the numbers were not strictly applied for successive years.
All numbers were impressed into the wood and a six digit number assigned, though no particular order was given and some instruments had a letter prefix.
This new function will try to match the serial number against older formats, details required for an exact match are listed in yellow.
If you read a lot of the serial numbers on the same.
There will be a three- to six-digit number stamped in black, and possibly a two-digit number penciled in red.
Some time in 1953, instruments were ink stamped on the headstock back with 5 or 6 digit numbers, the first indicating the year, the following numbers are production numbers.
Like the previous catalog, this featured the company's guitars in a variety of interesting settings around California, from the Whiskey-A-Go-Go, to the Hollywood Bowl.