Blueprinted sample book, cardboard double-fold impressed on 4 sides with a blue pattern. 1st side: impressed surface horizontally divided into two fields – upper: dotted tendrils with small stylized flowers in the form of arches and dots in their center. Number 507 affixed top right. – lower: dotted tendrils with heart-shaped flowers. Number 508 affixed right. 2nd side: impressed surface horizontally divided into two fields – upper: network of dotted tendrils with stylized dotted leaves. Number 509 affixed top left. – lower: vertical stripes composed of “S”, with horizontal dotted lines between them. Number 510 affixed left. 3rd side: impressed surface horizontally divided into two fields – upper: in diagonal arrangement, network of dotted squares. Number 511 affixed top right. – lower: dotted “labyrinth” with small crescents. Number 512 affixed right. 4th side: impressed surface horizontally divided into two fields – upper: vertical waves with thick dots in meanders, vertical dotted lines between them. Number 513 affixed top left. – lower: dotted network of squares. Number 514 affixed left.