Hello! Can anybody help me to identify these coins, please? Their weight is inscribed at the bottom of each picture. I want to know their time and region of issue, ruler, mint name and denomination. Thanks ahead.
No idea. Did you Google it yet? I found this... maybe you already knew about it... https://indiacoinsmarks.wordpress.com/2013/10/30/common-identification-marks-on-indian-coins/
Disclaimer: I'm more into the earlier Indian coinage, so not a real expert on these. However, Your first one seems to read "Muhammad Shah" and the second "Ahmad Shah". My best guess is that these are a half-Gani and bit underweight Gani of the Bahmani Sultans (roughly 1400-1500AD). For the fourth: AR 11 grams point to a Tanka or Rupee as denomination. Five and six may not be indian at all. Especially the last one looks more like an Ottoman akce.
at least some of these are indian "princely states" coins, i think most are probably 18th and 19th century. exactly what types, i can't say.
