NSW BDM online index ....

is a typical index, with the usual flaws due to mis-reads of original records usually created decades (or longer) before the index was prepared. 19thCentury entries are of course in longhand, ink bleeds, more script, thumbed corners, tears, and general wear and tear led to volunteers preparing the initial index in the 1930s. That index remains the basis of the current online index.

Samuel C and Emily SELEMS as parents 1887 birth of Ceci registered at Drake. #35399
There's births Armidale, Bathurst, Drake, Lithgow, Narrabri, Tenterfield and Vegetable Creek for Samuel and Emily and variations on Selmes
Harold, registered Lithgow in 1898 may well have all his older siblings listed on it. #13225. The official transcription is the cheaper and quicker option, and has the same info as a real deal cert.
Cheers, JM