Features spy projects for boys, including making a spy periscope, invisible ink messages, and fingerprint powder.
| hid | mid | miid | nid | wid | location_code | location | barcode | callnum | dewey | created | updated |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 278305 | 4126741 | 1890 | 468027 | 573129 | BATJK | 105 | BATJK05231 | 327.12 OWE | 327.12 | 1577459752 | 1684524115 |