Oldest to newest
Model B Revision 1.0 (256MB)
PCB says: "Raspberry Pi (c) 2011"
Model B Revision 1.0 (ECN0001) (256MB)
Model B Revision 2.0 (256MB)
Model A Revision 2.0 (256MB)
PCB says: "Raspberry Pi (c)2011.12"
Model B Revision 2.0 (512MB)
PCB says: "Raspberry Pi (c)2011.12"
Model B+ Revision 1.0 (512MB)
PCB says: "Raspberry Pi Model B+ V1.2"
Compute Module Revision 1.0 (512MB)
Model A+ Revision 1.0 (512MB)
PCB says: "Raspberry Pi 2 Model A+ V1.1"
Pi 2 Model B Revision 1.1 (1GB)
PCB says: "Raspberry Pi 2 Model B V1.1"