sentences:  The Bank of New South Wales had been interested in the CBA as early as 1962, and had put up a merger proposal in 1968, but that stumbled over increasing CBA's pension entitlements scheme to the more generous level of the Wales' one, and on the CBA's reluctance to lose its identity to the larger Bank of New South Wales.In 1980 the Bank of New South Wales was the country's largest bank and CBA about the fifth largest and the Bank of New South Wales was aiming to expand further.It quietly bought some CBA shares in late 1980 and in early 1981 made a merger approach, which was rejected.