I am not a T205 expert, but these look like alignment marks and not crop marks. Alignment marks, like those see on many proofs (
http://t206resource.com/Proofs%20Gallery.html), were guides for the printer to make sure that each layer was correctly registered and generally look like what you have shown. In this case they would have been covered by the now-missing gold layer before the cards were cut. Crop marks were to help guide the cutting of completed cards. Seeing as these T205 marks would have been covered by the gold layer, they would have been useless to guide cutting.