As far as I can see, among the Israelites, there were five main divisions of weights and money:
The gerah, half shekel (bekah), shekel, mina, and talent. (Exodus 25:39; 30:13; 38:25, 26; 1Kings 10:17; Ezekiel 45:12)
The writings of ancient Israel indicates that the mina was worth 50-60 shekels (Ezekiel 45:12), and would be worth $110.10 for silver and $6,422.50 for the gold mina, in modern values.
By Jesus' time, according to Greek writers of the day, the divisions were now the lepton (Jewish), quadrans (Roman), assarion (Roman and provincial), denarius (Roman), drachma (Greek), didrachma (Greek), and the stater (Matthew 5:26; 10:29; 17:24, 27; 20:10; Mark 12:42; Luke 12:6, 59; 15:8; 21:2)
The mina was worth '100 drachmas'. Accordingly, the present-day value would be $65.40, which amounted to about a fourth of the wages earned annually by an agricultural worker.(Luke 19:13-25)
In his book "When God Reigns: A Study in the Parables of Jesus" Dr. C. Michael Moss, the Director of the Bible Program at Ohio Valley University, cites the NIV Bible note that a mina was valued at three months' wages. He also states that if we were to calculate the Mina according to today's earnings at minimum wage a mina would be worth approximately $4,200.
One mina is worth 60 shekels and one shekel is equivalent to 180 barley grains.
I have an 1892 bible that belonged to my mothers great great grandmother . how much is it worth?
The word of God.
only as much as someone is willing to pay for it
$300, if it is personally signed
it would depend on the condition that it is in
Not all that much unless it is a family Bible with somebody important in it. Old Bible's are quite common. If it is a family Bible with genealogies and such, you may find a collector somewhere.