Now showing: New Guinea - Official stamps (1925 - 1932) - 11 stamps.
1931
No. 27-37 Overprinted "O S" - with Date Scrolls
2. August WM: None Perforation: 11
![[No. 27-37 Overprinted "O S" - with Date Scrolls, type B1]](https://www.stampworld.com/media/catalogue/New-Guinea/Official-stamps/B1-s.jpg)
![[No. 27-37 Overprinted "O S" - with Date Scrolls, type B2]](https://www.stampworld.com/media/catalogue/New-Guinea/Official-stamps/B2-s.jpg)
![[No. 27-37 Overprinted "O S" - with Date Scrolls, type B3]](https://www.stampworld.com/media/catalogue/New-Guinea/Official-stamps/B3-s.jpg)
![[No. 27-37 Overprinted "O S" - with Date Scrolls, type B10]](https://www.stampworld.com/media/catalogue/New-Guinea/Official-stamps/B10-s.jpg)
| No. | Type | D | Color | Description |
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| 10 | B | 1P | green | - | 9.42 | 17.67 | - | USD |
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| 11 | B1 | 1½P | red | - | 9.42 | 17.67 | - | USD |
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| 12 | B2 | 2P | purple red | - | 14.13 | 9.42 | - | USD |
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| 13 | B3 | 3P | blue | - | 9.42 | 9.42 | - | USD |
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| 14 | B4 | 4P | olive | - | 7.07 | 11.78 | - | USD |
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| 15 | B5 | 5P | bluish green | - | 14.13 | 17.67 | - | USD |
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| 16 | B6 | 6P | yellowish brown | - | 17.67 | 23.56 | - | USD |
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| 17 | B7 | 9P | violet | - | 23.56 | 35.34 | - | USD |
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| 18 | B8 | 1Sh | bluish green | - | 23.56 | 35.34 | - | USD |
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| 19 | B9 | 2Sh | brownish carmine | - | 58.90 | 94.23 | - | USD |
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| 20 | B10 | 5Sh | olive brown | - | 147 | 235 | - | USD |
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| 10‑20 | - | 334 | 507 | - | USD |
