How to get serial numbers from a sun box

How to get serial numbers from a sun box

bash-3.2# smbios -t SMB_TYPE_SYSTEM
ID    SIZE TYPE
1     159  SMB_TYPE_SYSTEM (system information)
  Manufacturer: Sun Microsystems
  Product: Sun -----
  Version:                                
  Serial Number:xxxx                    
  UUID: ff200008-ffff-ffff-ffff-xxxxxxxxx
  Wake-Up Event: 0x6 (power switch)
  SKU Number: xxxxxxxxx        
  Family: Sun ---

Another good command 

prtdiag -v