Hi there,
I hope I can help with some info
Firstly it is very very likely that the NSW BDM would be issuing a certificate based on a summary report that has NOT ever been reconciled with any Church register.......
Question ..... Is there any markings outside the margin near where the Father's Rank/Profession OUGHT to be recorded? If not, then I would anticipate that there has been NO reconciliation.
Background : Until 1895 the Clergy of NSW were usually sending ONLY a summary of their registers for marriage to the NSW BDM. Thus they were NOT including the birth place/s for the bride/groom not their respective ages, nor the details for the four parents, nor the occupations of the fathers of the bride/groom .
HOWEVER,

that information was of course required to be collected by Church Law and recorded on the Parish Register.
EDIT TO ADD I am not sure which Diocese covers Wentworth, perhaps Bathurst/Wilcannia ? I think the Bathurst Diocese is currently being transcribed

and could be on familysearch.org in the not too distant future. I am waiting on confirmation of that from another RChatter re a marriage in the 1870s at Lucknow
In 1912 the Reconcilation process (NSW BDM records to Church Registers) commenced. But The Great War saw many of the BDM clerks enlist (often to perform vital clerical and admin duties, including preparing the information for Base Records and sadly often preparing the coded telegrams for the families back home).
The reconciliation process has not ever been completed (NSW BDM has a long history of funding issues ! back to when it was first established ! ).
I think you will find that any mc from any rural/regional area of NSW has most likely never been reconciled, and thus it is most likely that the NSW BDM mc is in the ONE hand, usually that of the Officiating Minister. As I understand it, the mc shows a marriage in November 1874, and a NSW BDM registration in 1875. This, to me at least, indicates that the clergyman submitted the details at the END of the Dec Quarter, perhaps along with all (if any) other marriages he had conducted that quarter/that year. Perhaps he spent ONE full day writing up the summaries for the quarter/year, perhaps late December or early January. Thus a marriage recorded in his parish register for November may mean he had to rely on his own memory as to Adelaide's surname IF her handwriting was causing him difficulty in reading her signature.
http://www.rootschat.com/forum/index.php/topic,546609.0.html This is a thread I did up about how to overcome hurdles on NSW BDM mcs from that era.
Cheers, JM