The parish have responded "I checked the baptismal register of the parish in the years 1830-1839 without finding confirmation of the baptism of Francisco Alfredi Posca"

There has now been a thought that instead of Lezzeno it might be Palanzo, a little further north.

Sorry for late reply.
Re his year of birth. This comes from the English census for 1861 & 1871. Given as 27 in 1861 and 38 in 1871

Thank you Fassino and cedrone for your help.

I attach the 1846 arrival in Dover.

Again thank you.

Graham

I am researching this gentleman who by 1861 was living in Liverpool, Lancashire England, occupation Looking Glass Maker. I have a possible arrival of him on 4th May 1846 in Dover (England Alien Arrivals) as an Apprentice to a Geovanni Dotti.

I would like to establish his actual birth/baptism ...