Contains registers 49 through 60
60B Register (12/31/1960)
59B Register (11/30/1960)
58B Register (10/31/1960)
57B Register (9/30/1960)
56B Register (8/31/1960)
55B Register (7/31/1960)
54B Register (6/30/1960)
53B Register (5/31/1960)
52B Register (4/30/1960)
51B Register (3/31/1960)
50B Register (2/29/1960)
49B Register (1/31/1960)
48B Register (1/2/1960)