A slip in a shape everyone recognises
The worth of an apostille lies in looking the same wherever it was issued. Countries inside the treaty settled on one form, so an office abroad never has to learn British paperwork to read it. The slip names the signer, the post held and the seal used, and it is accepted on that basis with no further stamps behind it.
Why nothing has to follow it
Honduras joined the Hague Convention in 2004 and Britain sits inside the same agreement, so the two accept each other's slips directly. That removes the consular stage altogether. An apostille from United Kingdom to Honduras is one office, one fee for each sheet and one envelope back, after which the file is ready to go wherever it was wanted.
What the slip does not say
The limits are worth stating plainly, because they catch people out. The slip vouches for a signature and not for the truth of a claim. It translates nothing, and it cannot make a paper suitable for a purpose it never had in the first place. A marked sheet that says the wrong thing is still a sheet that says the wrong thing.
The paper, and the post
Where the record is a civil one, order a reprint rather than posting the certificate you keep at home. Stoke-on-Trent Register Office prints birth, marriage and death entries again from the register, signed by a registrar, and the marking office handles that copy like any other sheet. Your own certificate then stays put throughout.
Days run on the post, so the date it comes back is not one anybody quotes in advance. There is no second office waiting behind this one, which makes the route among the more predictable ones. Get the sheets right at the outset and everything left is postage and a little patience.