first analyses show the difference...

...at first sight the textiles on the two pictures look very similar.

I did a first macro analyses, the firts picture is a tablecloth , owned by Jan Bustin and the seond picture is a canvas as used by a Portuguese painter (contributed to Francisco Correia) 

In the textile of the canvas we find more lines which means it is woven with another threading and threadling of the loom.

I will make the draft and weave a reconstruction of both textiles.

source: a tela na pintura portuguesa, materiais e técnicas do século XV ao seculo XIX by  Rita Maltieira