How about those rarebird vibroverbs.
Fender bassman cabinet serial numbers.
From 1952 through the spring of 1954 fender produced approximately 660 model 5b6 bassman amplifiers serial numbers 0001 0660.
These numbers always begin with eia 606 and are followed by three or four digits in various combinations.
Here are the serial number schemes from 1951 to 1970.
Therefore if you have a push pull pot your amp is 1974 or newer.
If three digits are present the first digit refers to the year i e a 7 would mean 1967.
If you are unable to find the production stamp find the serial number that is also printed on the tube chart.
For example the serial numbers for 5f6 and 5f6 a bassman amps run from bm00001 to bm04600 therefore we can conclude that there were about 4 600 units made.
It doesn t hold any info about dating fender cabinets.
If four digits are present the first two digits refer to the year i e a 66 would mean 1966.
These codes are for amps with the serial number beginning with a letter.
1951 to 1954 the serial numbers were 001 0900.
It does give info on dating fender amps by serial number.
I got this one.
A7 five digits not four.
Citation needed the earlier cabinets have been called tv front designs 1 with a front panel that had a rectangular grill cloth with rounded corners and looked much like a television of that era.