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| OS1 | OS2 | OS3 | OS4 | OS5 - 1949 | OS6 |
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| OS7 | OS8 | OS9 | OS10 | OS11 | OS12 |
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| OS13 | OS14 | OS15 - 1950 | OS16 | OS17 - 1951 | OS18 - 1951 |
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| OS19 - 1951 | OS20 - 1951 | OS21 - 1951 | OS22 - 1951 | OS23 - 1951 | OS24 - 1951 |
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| OS25 - 1951 | OS26 - 1951 | OS27 - 1951 | OS28 - 1951 | OS29 - 1951 | OS30 - 1951 |
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| OS31 - 1951 | OS32 - 1951 | OS33 - 1951 | OS34 - 1951 | OS35 - 1951 | OS36 |
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| OS37 - 1952 | OS38 - 1952 | OS39 - 1952 | OS40 - 1952 | OS41 - 1952 | OS42 - 1952 |
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| OS43 - 1952 | OS44 - 1952 | OS45 - 1952 | OS46 - 1952 | OS47 - 1952 | OS48 - 1953 |
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| OS49 - 1953 | OS50 - 1953 | OS51 - 1953 | OS52 - 1953 | OS53 - 1954 | OS54 - 1954 |
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| OS55 - 1954 | OS56 - 1954 | OS57 | OS58 - 1955 | OS59 - 1955 | OS60 - 1955 |
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| OS61 - 1955 | OS62 - 1955 | OS63 - 1955 | OS64 - 1955 | OS65 - 1955 |
Note: Issues 31 to 39 are not shown to scale, they are actually around 25 mm larger than normal size in both dimensions, making them noticeably larger.