 Complete the following phrase:  In December 1972, International Bank IB bought a two thirds stake in the Mercantile Bank  Trust Company which had a bank in Freeport, Bahamas, the Mercantile Bank of Freeport, and another bank in the Cayman Islands of a similar name. These banks had been established by I. Gordon Mosvold of the . In September 1976, when Mosvold resigned from Mercantiles board, he had 4.55 million in loans with Mercantile. Henry N. Conway, Jr., senior vice president of IB, stated that several loans on greatly overvalued property in Bimini and Freeport had been made by Mercatile but no terms had been established. According to an audit by Price Waterhouse, Mercantile had transferred about 2 million in assets and liabilities just prior to IBs takeover of its 26 million to Castle Bank  Trust of Nassau, Bahamas which Paul Helliwell founded through a Panamanian shell company through his Miami based law firm in 1962. Castle Bank fell under investigation during Operation Tradewinds which was begun by the IRS in 1965 due to suspected drug trafficking involving Castle Bank. However, following the death of Helliwell on December 24, 1976, the banks Castle, Mercantile Nassau and Mercantile Cayman collapsed in the middle of May 1977. Castle had been under the IRSs Project Haven investigation due to over three hundred Castle clients supposedly involved in a tax evasion scheme. In 1980, Helliwells Castle Bank was revealed to be a CIA account for the Helliwell law firm. In addition to Helliwell supposedly being one of the pay masters for the Bay of Pigs 