Are Friedman Cabinets Serialized?

Curious if the Friedman 4x12 Cabinets have Serial Numbers as I don't see one on the new one I just bought.

Usually there is a small sticker near the jack. Check the box to see if it fell off. The one on my 112 vintage that I just go was literally falling off.

My 2x12 had the serial number on a sticker too. It literally fell off the first day I had it. I just taped it on so I wouldn’t lose it. I don’t think my 1x12’s had one though, so I’m not sure if they’re still doing it.