Finally, after polishing and acid etching made out the serial number of my MG5.
I can make it 4 numbers, though due to a section of the plate having rusted through 1 may be missing.
I have the following– 7-156.
Also the number 2155 is on the differential gears.
Engine No MGE 6828.
Hope this is correct and helps with the register.
Silverfox.