Please help Identify some mystery holes in Engine Bay

[J Warren]

Hey guys.
These are all taken from the engine bay of a early 1957 (2/5/57) Normal Coupe. The last pictures are on the "firewall" drivers side while facing the car near the hinge. I circled the areas in question. The first and second pictures consist of three holes again on the drivers side engine bay right above the tube holding the cable to open the engine bay door. All three were covered by sound insulation. I am trying to figure out if these three are original or need to be repaired when doing the body work.
Thank you for your help
J

[Rainer Cooney]

First photo is of the Carrera oil tank holes, large hole is the filler small holes are oil hose fittings. Second photo is Carrera fuel pressure regulator on top and luggage strap clamp bracket ( one of two ). Don't fill in any of these they're all original.

[Joris Koning]

Rainer is right as usual. All the earlier A cars had the holes and the bracket for the pressure regulator.

[J Warren]

As always, thank you very much.
J