Embassy legalisation for use in Thailand
To legalize documents for Thailand you work through two signatures rather than one, and the count of the papers drives everything else. Italy signs each document and takes a tax stamp for it. Thailand's mission in Italy then attests each one and charges for that. Nothing here is priced by the bundle, so a file of three records costs three times what a single sheet costs.
Thailand consular requirements
The Thai mission looks at the Italian stamp before it looks at anything else, because the consular legalization for Thailand rests on that one mark. It works from originals, or from copies a notary has certified, and it expects the signatures to run in an unbroken line. A page added after the attestation sits outside the chain and does no work at all.
The Messina to Thailand route step by step
Sort the papers by who issued them. Anything from a comune, a school, a hospital or the police is a public record and belongs to the Prefettura, the state's office in the province. A judgment, or a deed a notary has drawn up, belongs to the Procura della Repubblica at the courthouse. Private papers are certified by a notary before either desk can act.
After the Italian stamp the file goes on to the mission for the embassy attestation for Thailand, which closes the chain. Papers travel together and come back together, so a degree, a transcript and a marriage record posted as one batch spend the same days on the road as a single sheet would.
Cost and timing for this route
Set the money out per document and the timetable in two blocks. The Italian block is the €16 marca da bollo on each paper plus the state's stamp; the Thai block is the consular fee, so an official fee applies there as well. Standard handling covers 10–15 business days, and the express track brings that down to 3–5.
Where a plan slips it is rarely at the mission. Embassy legalization for Thailand from Messina runs to time once the file is right, and the days go missing at the front instead: on a copy nobody certified, or an original still sitting in a drawer in another town.