# Field Command Operational Mark

Create a single clean in-universe reference sheet for **The Dobsonian Institute: Field Command operational mark**.

Approved presentation mode:
**Concept Prototype Sheet**

Global visual style:
Grayscale pencil prototype drawing on archival off-white paper. Clarified hand-drafted technical illustration with clean linework, subtle construction marks, sparse practical annotations, and restrained institutional presentation. Serious, procedural, authoritative, internal-use tone. No flashy effects, no glow, no mystical or cosmic sci-fi styling, no cinematic poster treatment, and no unnecessary scenery.

Document-family consistency:
This sheet must match the same document family as the established Warden, Interceptor, Observation Detail, Incursion Detail, and Adjunct reference sheets: same overall page logic, same restrained archival presentation, same margins, same calm technical-illustration language, same paper texture, and same controlled annotation style. It should look like it belongs in the same Dobsonian Field Command planning archive.

Subject:
Define a simplified operational mark derived from the formal Dobsonian Institute logo/seal. This operational mark is for small/mobile/readability contexts in Field Command. It is not a separate brand.

Core mark design:
The mark should be simple, readable, and institutional.
Use the Institute’s visual DNA:
- a diamond-based outer structure
- a central threshold/door-like vertical form
- strong negative space
- optional minimal horizontal base or crossbar
The mark should be clean and recognizable at small scale.

Avoid:
unexplained symbols, random emblems, occult glyphs, fake alphabet, wings, stars, laurels, skulls, military-patch cliches, glowing insignia, ornate seal complexity, sci-fi circuitry clutter, and decorative nonsense.

Sheet contents:
Include:
- one large primary mark drawing
- several smaller simplified or reduced variants for small-scale use
- one small embossed or printed application example on a field plate or chest plate
- one small UI/icon application example such as a card pip, Anchor status icon, or field tag
- short practical annotation callouts identifying intended use and simplification logic

Header text:
At the top of the page, render:
- THE DOBSONIAN INSTITUTE
- FIELD COMMAND OPERATIONAL MARK
- CONCEPT PROTOTYPE SHEET
- INTERNAL REFERENCE

If exact typography is imperfect, prioritize layout consistency and illustration quality over perfect spelling.

Text rules:
Do not invent lore.
Do not add quotes.
Do not add mottos.
Do not add slogan lines.
Do not add story text.
Do not add fake classifications.
Do not add authorization codes.
Do not add doctrine labels.
Do not add unit IDs.
Do not add bureaucratic metadata beyond the header lines above.
Do not add footer blocks beyond brief practical annotation callouts.
Keep rendered text minimal.

Allowed annotation labels only:
- Mark Structure
- Usage Notes
- Application Examples

Allowed annotation text only:

Mark Structure:
- diamond boundary
- threshold / door form
- negative space
- optional base line

Usage Notes:
- small-scale field use
- simplified Institute derivative
- formal logo reserved elsewhere

Application Examples:
- chest or equipment plate
- card pip / Anchor icon / field tag

Footer/annotation tone:
Keep callouts brief, institutional, and practical. One note may indicate that the operational mark is a simplified derivative of the full Institute mark for field readability. Another may indicate that the full logo is reserved for formal institutional contexts.

Important:
This should feel like an internal design/reference sheet, not a consumer-facing branding page.
No text inside the mark itself.