Can anyone tell me what is RP. Why people are quoting fantastic prices for this product. They say irridium is present, But irridium is not that expensie. another application for Rp is satellite and defence application. Can learned people tell me what it is ?

also appraiser card - who issued this card, and under what sections of BIS or NIST or DIN standards these tests are mentioned.

Prices of 1000 cr per inch are just fantasy. Most of the people are dreming with their eyes open.