Now showing: South Australia - Official stamps (1874 - 1903) - 10 stamps.
1891 -1894
Issues of 1883/1895 Overprinted "O.S"
WM: 4 Perforation: 10-12½
![[Issues of 1883/1895 Overprinted "O.S", type B1]](https://www.stampworld.com/media/catalogue/South-Australia/Official-stamps/B1-s.jpg)
![[Issues of 1883/1895 Overprinted "O.S", type B2]](https://www.stampworld.com/media/catalogue/South-Australia/Official-stamps/B2-s.jpg)
![[Issues of 1883/1895 Overprinted "O.S", type B5]](https://www.stampworld.com/media/catalogue/South-Australia/Official-stamps/B5-s.jpg)
![[Issues of 1883/1895 Overprinted "O.S", type B6]](https://www.stampworld.com/media/catalogue/South-Australia/Official-stamps/B6-s.jpg)
| No. | Type | D | Color | Description |
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| 21 | B | ½P | brown | - | 16.76 | 6.70 | - | USD |
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| 22 | B1 | 1P | bluish green | - | 13.41 | 1.12 | - | USD |
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| 23 | B2 | 2P | brick-red | - | 13.41 | 0.56 | - | USD |
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| 24 | B3 | 2½/4P | light green | - | 55.86 | 13.41 | - | USD |
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| 25 | B4 | 4P | light violet | - | 67.03 | 5.59 | - | USD |
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| 26 | B5 | 5/6P | brown | - | 55.86 | 16.76 | - | USD |
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| 27 | B6 | 6P | blue | - | 27.93 | 2.23 | - | USD |
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| 28 | B7 | 1Sh | brown | - | 33.51 | 6.70 | - | USD |
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| 29 | B8 | 2Sh | carmine | - | 89.37 | 13.41 | - | USD |
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| 21‑29 | - | 373 | 66.48 | - | USD |
