Super major Casting codes

[Pipsqueak]

Evening guys,I have some casting codes from a major I found in some brambles, could anyone put a year to it please,
Codes are.
Engine under manifold, F30D.
Clutch, F23D.
Under seat. H8D.
Number plate, WRP. 154.


Thanks, Pip.

[Mjg1705]

Tho a theses codes indicate a may-june 1960 major - and engine number may help if it's obtainable -

[Pipsqueak]

Many thanks, couldn't get near engine number too many brambles.
Thanks again, Pip.

[Dandy Dave]

I guess that would make it a Power Major. Dandy Dave!