I have in my collection at this moment:

Total number of 330ml Coca Cola Light Special cans from Poland: 5

pl-2007-001
Can factory: Ball
Can number: 1019900
Aluminium

pl-2002-002
Can factory: CP
Can number: 20106-1-5
Aluminium

pl-2001-005
Can factory: CP
Can number: 20106S-1-1
Aluminium

pl-2001-003
Can factory: CP
Can number: 20106U-1-1
Aluminium