18K Straight Square Shank Hallmark Stamp 1/25" (1.00mm) Impression Height Task Lighting or D4 158 rolling mills

or D4 158 rolling mills in any version

with each size carrying corresponding height and width dimensions

Stamped sunshine design on an oval concho form

Made in the USA and Germany

they are manufactured in Vallorbe

18K Straight Square Shank Hallmark Stamp 1/25" (1.00mm) Impression Height Task Lighting or D4 158 rolling millsThis straight square shank 18K hallmark stamp is precision cut from heat treated tool steel, designed for marking gold alloys containing no less than 75% pure gold by weight. The straight shank configuration is ideal for stamping flat surfaces, leaving a clean, sunken impression with each strike. The 1 25" (1. 00mm) measurement refers to the height of the impression, not the width. If you need to mark the inside of rings or curved interior surfaces, a