Hi ,
I remember seeing this at auction and thinking the date was wrong , looks more like the second half of the 19th c to me ,C H F Muller in Hamburg produced many Facon De Venise replicas and this could be one of there's, replicas were also made in other countries Italy and England included.
cheers ,
Peter.
just added a quick snap of one of my replicas , I think you will see some similarities