The Superior Labor Heart Logo Pin - Navy purple mountain majesty The most recognized one being

The most recognized one being the mass-energy equivalence equation: E=mc2

All metal fitting are finished in palladium and polished by hand

Named one of New York Times Wirecutter “Best Notebooks of 2023

Matching warm white envelopes make the presentation as elegant as your handwritten message inside

The combination of dots

The Superior Labor Heart Logo Pin - Navy purple mountain majesty The most recognized one beingThe familiar "I love HANDMADE" patch design is now available as a colorful pin. Available in 10 colors to match the paint colors of the engineer bag. The metal parts are made of solid brass with no plating. The color will dull as you use it, so enjoy the changes in its appearance over time. Due to the characteristics of brass material, there may be some areas that become dull during the manufacturing process. If you want to remove tarnish from brass