Some do, some don't

Size: 
30x40 cm (11,8x15,7 in) Unlimited edition
50x70 cm (19,7x27,5 in) Unlimited edition

The unlimited edition print is printed on fine-art photo paper but without my signatur and without Certificate of Authenticity. Only available in 30x40 cm (11,8x15,7 in) and 50x70 cm (19,7x27,5 in).