Description
Borosilicate glass, 5 mm thick
10 minute time [+/- 1 minute]
Small size 150 x 125 mm
Hourglass gross weight: 1.5 kg avg.
Fine Gold (999.9/000) coated on nanoballs: 11 g avg.
0.6 mm gold-plated stainless steel nanoballs: 1.1 kg / 1’249’996 pieces avg.
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