Blue print sampler, cardboard booklet with double sheet printed on 4 sides with a blue pattern. 1st side: printed area horizontally divided into two fields – top: diagonal rows of a network of small dots, with the number 460 attached in the upper right corner. – bottom: through the network of small dots, diagonal rows of larger double droplet-shaped figures. Number 461 attached on the right. 2nd side: printed area horizontally divided into two fields – top: diagonal rows of small shapes composed of a comma, surrounded by two pairs of dots. Number 462 attached in the upper left corner. – bottom: decoration of a dotted “labyrinth”. Number 463 attached on the left. 3rd side: printed area horizontally divided into two fields – top: diagonal rows of small “parquet” motif composed of blue doublets. Number 464 attached in the upper right corner. – bottom: in vertical rows, a symmetrical pattern composed of triplets stacked with a dot above and below. Number 465 attached on the right. 4th side: printed area horizontally divided into two fields – top: diagonal rows of a symmetrical network of small dots. Number 466 attached in the upper left corner. – bottom: diagonal arrangement of a network of small double dots. Number 467 attached on the left.