Change tracking was not implemented intially, so some early change records do not have details outside of the date of change.
| Field | Old Value | New Value |
|---|---|---|
| Id | (none) | 42610 |
| Border color | (none) | 68 |
| Border type | (none) | 1 |
| Background color | (none) | 68 |
| Lettering color | (none) | (none) |
| Fdl bsa color | (none) | (none) |
| First issue | (none) | 01 Jan 1960 |
| Description | (none) | Prototype for N2 NBL Thunderbird Head; no letters/numbers; one known example |
| Patchscan url | (none) | (none) |
| Shortname | (none) | (none) |
| History | (none) | (none) |
| Material | (none) | Cloth |
| Backing type | (none) | Cloth Back |
| Issue shape | (none) | Other |
| Uuid | (none) | eGnZ1WZNt7k= |
| Designer | (none) | (none) |
| Date type | precise | decade |
| Field | Old Value | New Value |
|---|---|---|
| Description | Prototype for N2 NBL Thunderbird Head; no letters/numbers; one known example | Prototype of N4(a/b), NBL Thunderbird Head, no letters/numbers; (one known example) |