These codes are for amps with the serial number beginning with a letter.
Fender bassman cabinet serial numbers.
1951 bm00001 to bm00550 1956 bm00550 to bm01200 1957 bm01200 to bm01600.
The site gives info about amps with i e.
I got this one.
These numbers always begin with eia 606 and are followed by three or four digits in various combinations.
It does give info on dating fender amps by serial number.
Here are the serial number schemes from 1951 to 1970.
How about those rarebird vibroverbs.
If four digits are present the first two digits refer to the year i e a 66 would mean 1966.
1951 to 1954 the serial numbers were 001 0900.
It doesn t hold any info about dating fender cabinets.
A7 five digits not four.
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.
If you are unable to find the production stamp find the serial number that is also printed on the tube chart.
From 1952 through the spring of 1954 fender produced approximately 660 model 5b6 bassman amplifiers serial numbers 0001 0660.
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.