Ampeg V4B RI Serial Code year of build

[BassAdder27]

How can you check the year of manufacture of my Ampeg V4B RI ?

I have the serial number just need to interpret how the letters / numbers relate to year

 

[bass player 53]

Does any of this help?

Ampeg :: Knowledge Base

 

[BassAdder27]

Ampeg confirmed it as 2019 ( L code )