Sampler for blue printing, cardboard double sheet printed on 4 sides with a blue pattern. Front side: printed area horizontally divided into two fields – top: in diagonal stripes trio of dots in the shape of a stylized flower, In the middle on top number 444 pasted. – bottom: in diagonal stripes small stylized grape-shaped figures made of blue dots. In the middle pasted number 445. Side 2: printed area horizontally divided into two fields – top: in diagonal stripes small figures composed of ornamental motifs – two thick and two small dots. In the middle on top number 446 pasted. – bottom: in diagonal stripes stylized small motifs composed of four dots. In the middle pasted number 447. Side 3: printed side horizontally divided into two fields – top: in diagonal stripes small ornamental motif composed of dotted curves and clusters of tiny dots. In the middle on top number 448 pasted. – bottom: in diagonal stripes small ornamental motif composed of “zigzag” arranged pairs of dots. In the middle pasted number 449. Side 4: printed side horizontally divided into two fields – top: in diagonal stripes small ornamental motif of flowers, in the middle on top number 450 pasted. – bottom: in diagonal stripes small ornamental motif composed of delicate stylized flowers. In the middle pasted number 451.