Do you know the make? what does the green sticker on the side of the lock say? Is there any writing and/or printing anywhere on the lock? If you can supply more information about the lock someone may be able to help better.
if there is no further information about the lock, if you can manage a better picture, then that may also help.
It is a double bitted lever lock that is all I can tell from that picture. Hopefully some of the more experienced lever lock pickers can chime in.
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Ok,
It's a CISA. Green tab reads: TEST OK M738 26-M.
Also on the body the word "BREVETTATO" is inscribed.
Dimensions: 22.5 cm height x 11.5 cm wide.
I donno if this is of any help. If not, ask me to post a better pic.
It's important for me to know how difficult it is to be opened.
My appartment's door has one of those....