HOW MUCH FOR A BOREHOLE BACK IN THE DAY?
Boreholes have been around for a very long time, in fact, according to Wikipedia, it was first used by the Han Dynasty (202 BC – 220 AD) when the Chinese used deep borehole drilling for mining and other projects. The Chinese method back then was accomplished by a team of men jumping on and off a beam to impact the drilling bit while the actual boring tool was rotated by buffalo and oxen.
We have come a long way since then with technology changing, but what did it cost back in 1974?
Take a look for yourself: