The language Iran asks for
Papers filed in Iran have to be in Persian, so translating them is part of the job rather than an afterthought. The awkward cases are sheets that were never purely English: a degree with a Latin phrase across the top, an old form headed in another tongue, or a record that picked up a foreign stamp on an earlier trip abroad.
Every line has to be accounted for
The finished set is read as a map of the source, so a reader running a finger down it expects to find something for each block of text. Words in a third language are brought into Persian and marked for what they were. Text that cannot be made out is described as unclear rather than dropped, because a silent gap invites a question you will not be there to answer.
Keeping track of who wrote what
Where part of the sheet was added by another body, the translated version says so. That keeps authorship straight: one office wrote the form, someone else pressed the stamp on it, and the translator wrote only the Persian. The signed statement covers the match between the two texts and stays narrow on purpose, which is exactly what makes it worth relying on.
Cost, days, and the sheet you start from
At £25 a side as issued, the price comes out of a page count and nothing else, so a crowded sheet costs what a sparse one costs. Standard work is 3–5 business days and express 48 hours, both counted from readable images. If the record is a birth, marriage or death entry, a fresh certified copy from Bristol Register Office at The Old Council House, Corn Street, Bristol BS1 1JG spares your own the journey.