Ass Fyrretræ halvt block of bronze respektfuld at opfinde Opgive
MOHAVE GREEN TURQUOISE & BRONZE LAPIDARY COMPRESSED ROUGH BLOCK 2LB 9.0OZ | eBay
Simple bronze block for boats
4pc Metal Block Set - Brass, Aluminum, Steel & Copper - 2" x 0.5" - for Density Investigation, Specific Gravity & Specific Heat Experiments - Eisco Labs: Science Classroom Measurement Kits: Amazon.com: