Buying/Ordering copies of Naturalisation dodument when a folio is withheld

I  wonder if it is any idea to go on in this case with somesort of confiential information - and if so, in what way. 

My mother’s uncle Nils Loof was born April 1891, in Sweden and arrived in Adelaide per 18 January 1926, lived in  Port Lincoln, Yolanda Flat (?), wrote quite touching letters to his sister in Sweden until December 1939 and was thereafter never heard from.

I was happy to find out that a man with the same name was  buried at Tumby Bay Cementry 2 april 1965, aged 74, corresponding well with my mother’s uncle’s birth record.

The only document I have found however, is an Application for Naturalisation, for which I recently requested access permission.

I got the following answer (see Citation below, or the complete attachmnent file).

It is still unclear to me:

Is it only the portfolio/container of the document which is "secret"?

Would it still be ok to just request a copy of Nils Loof's Naturalisation application?

Would be most grateful for clarity.

Per-Anders Bringfelt

Varvhult, Lilla Björket 1, 50491 Sandhult, Sweden

CITATION FROM THE REPLY FROM AUSTRALIAN AUTHORITIES :

"---

In accordance with requirements of subsection 8(1) of the Archives Act 1983 (Cth) (Archives Act), I am a person authorised by the Director-General, pursuant to an Instrument of Delegation, to make a decision in relation to access to the requested item.
Basis for decision In making my decision, I considered:
 the content of the item requested
 the relevant provisions of the Archives Act 1983
 policy and guidelines of National Archives of Australia that relate to the access examination of Commonwealth records

Decision:

After examining this item I have decided that this item is open with exception under 33(1)(a) and (d) of the Archives Act for the reasons set out below.
One folio (18) have been partially exempted from public access.

The findings of facts:
Section 33(1)(a) of the Archives Act provides that:
- a record is exempt from public access if it contains information or matter the disclosure of which under this Act could reasonably be expected to cause damage to the security, defence or international relations of the Commonwealth.
Section 33(1)(d) of the Archives Act 1983 provides that:
- a record is exempt from public access if it contains information or matter the disclosure of which under this Act would constitute a breach of confidence.