RING, 18k guld med hematit, Art Deco, G.A. Dahlgren Hovjuvelerare, Stockholm, 1934. Totalvikt 5 gram. Smycken & Ädelstenar - Ringar - Auctionet
![Colorimetric determination and recycling of Hg2+ based on etching-induced morphology transformation from hollow AuAg nanocages to nanoboxes - ScienceDirect Colorimetric determination and recycling of Hg2+ based on etching-induced morphology transformation from hollow AuAg nanocages to nanoboxes - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0925838820307556-gr7.jpg)
Colorimetric determination and recycling of Hg2+ based on etching-induced morphology transformation from hollow AuAg nanocages to nanoboxes - ScienceDirect
RING, 18k guld med ljusgul sten, Ab Juvelfabriken, Stockholm, 1946. Totalvikt 4 gram. Smycken & Ädelstenar - Ringar - Auctionet
![Colorimetric determination and recycling of Hg2+ based on etching-induced morphology transformation from hollow AuAg nanocages to nanoboxes - ScienceDirect Colorimetric determination and recycling of Hg2+ based on etching-induced morphology transformation from hollow AuAg nanocages to nanoboxes - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0925838820307556-gr2.jpg)