How can i age my Selmer treble'n'bass 50 head i know the serial number .?

To age your Selmer Treble 'n' Bass 50 head, you can use the serial number to determine its production date. Selmer typically has a dating guide based on serial numbers, which you can find through vintage guitar databases or forums. Additionally, you may consult with vintage instrument experts or retailers who specialize in Selmer products for more precise information. Inspecting components and design features can also provide clues about the era in which it was made.