# Vintage engineering plate

Ivory linework turns an object into an elegant cobalt technical-style plate.

Web page: <https://promptseen.dev/en/templates/vintage-patent-blueprint/>  
Other languages: [简体中文](https://promptseen.dev/zh-hans/templates/vintage-patent-blueprint/index.md)

Supply an object and short labels; an exterior reference is optional.

Version v1 · 2 fields

![Ivory linework turns an object into an elegant cobalt technical-style plate.](https://promptseen.dev/media/a_234/vintage-patent-blueprint-detail-8c2adab25284.webp)

*This image comes from the default sample. Other values give other results.*

## Prompt · English

```text
Depict a mechanical pocket watch as a vintage engineering plate on deep cobalt paper. Draw precise ivory linework for a central three-quarter view, an exploded assembly and two small cross-sections. Use sparse dimension arrows and these exact short labels: CASE; DIAL; GEARS; CROWN, with a discreet serial-number box. Keep the drawing elegant and mechanically plausible, with slight paper wear around the margins.
```

## Template with placeholders

```text
Depict {{object}} as a vintage engineering plate on deep cobalt paper. Draw precise ivory linework for a central three-quarter view, an exploded assembly and two small cross-sections. Use sparse dimension arrows and these exact short labels: {{labels}}, with a discreet serial-number box. Keep the drawing elegant and mechanically plausible, with slight paper wear around the margins.
```

## Fields

| Field | Type | In the default sample |
| --- | --- | --- |
| Object (`object`) · Required | Text: Up to 300 characters | a mechanical pocket watch |
| Labels (`labels`) · Required | List: 1–12 items | CASE; DIAL; GEARS; CROWN |

## How to use

Supply an object and short labels; an exterior reference is optional.

This is a decorative concept plate, not a working patent or engineering specification.

## Recorded result

The example was generated with the built-in image tool. Its exact model ID was not returned. The recorded run contains the submitted prompt and ordered inputs.

## Inspiration

See the [tested case](https://promptseen.dev/en/prompts/vintage-patent-blueprint/) for original sources and dated attention metrics.

## Made with this template

- [Vintage engineering plate](https://promptseen.dev/en/prompts/vintage-patent-blueprint/)

## Test prints

### 2026-10-29 · GPT Image 2.5

- Provider: OpenAI
- Template v1: [Vintage engineering plate](https://promptseen.dev/en/templates/vintage-patent-blueprint/)

What we saw: Cobalt and ivory engineering-style plate includes perspective, exploded assembly and two details with correct supplied labels. Generated dimensions and serial number are decorative, not measured specifications.

![Ivory linework turns an object into an elegant cobalt technical-style plate.](https://promptseen.dev/media/a_234/vintage-patent-blueprint-detail-8c2adab25284.webp)