Dear , You appear to be knowledgable person.Could you lead me through these dark questions.

1.Do you(we) need c.d. deshmukh or other notes just because it may have black turmeric on it. 2.Does every coin need to pass same tests or there are different tests for different coins.Could you tell me all tests you know. 3. If any other coin(besides notorious 1971,1972,1985 etc coins) passes all the tests then will it do. 4.what is liquid blue test. 5. what is torch test.

If have lots of old coins.If any of these pass all tests I will contact you for deal.