海図21-020
| Index No. | 21-020 |
|---|---|
| Country | Philippines |
| Area | Philippines |
| Publisher | Japanese Navy |
| Type | Nautical Chart |
| Scale | Approx.1:5,000-1:73,000 |
| Year | 1923-1941 |
| Number of sheet | 25 |
地図資料目録
東南アジア（フィリピン）
| Index No. | 21-020 |
|---|---|
| Country | Philippines |
| Area | Philippines |
| Publisher | Japanese Navy |
| Type | Nautical Chart |
| Scale | Approx.1:5,000-1:73,000 |
| Year | 1923-1941 |
| Number of sheet | 25 |