Not a good enough example as you can freely remove the our in local our, and it will still produce the same result (even under strict). Only if you place the first part in a different scope, and enable strict, you'll see a difference:

#!/usr/bin/perl
use strict;
use warnings;
{
    our $V = 'non-local';

    sub print_v {
        print "$V\n";
    }
}

{
    local our $V = 'local';
    print_v;
}

print_v
__END__
[download]

If you now remove the second our, the program doesn't compile.