thumbnail|Ottoman tombac ewer and basin set – 1870 – Collection of Turkish and Islamic Arts Museum – Brought to museum in 1926 from the tomb of [[Sultana Pertevniyal]]
thumbnail|Ottoman tombac ewer and basin set – 1870 – Collection of Turkish and Islamic Arts Museum – Brought to museum in 1926 from the tomb of [[Sultana Pertevniyal]]
Tombac, or tombak, is a brass alloy with high copper content and 5–20% zinc content. Tin, lead or arsenic may be added for colouration. It is a cheap malleable alloy mainly used for medals, ornament, decoration and some munitions. In older use, the term may apply to brass alloy with a zinc content as high as 28–35%.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).