Physical description

.1) Wooden box with hinged lid.
22 wooden and 3 plastic flat curved patterns loose in the box.
Several are numbered.
.2) 3 clear plastic curves in a pouch. Made in Italy.
.3) 3 clear plastic curves in a pouch. Made in Italy.
.3 .....31) Plastic curves.
French curves are used in a drawing office to draw a smooth best fit line through a number of points.

Inscriptions & markings

.25) "42 / Engineering / TB5" etched into plastic.
.2 & .2) Pouches marked "LONGO Made in Italy" in gold.