# Collotype × Photogravure — composed image prompt
# IndexStyle — https://indexstyle.org/compose?ids=collotype+photogravure
# Collotype carries the structure and Photogravure appears as the accent.
# Style descriptors only. This prompt names no artist, studio, brand or work.

Produce four original images that take their structure from Collotype (technique, 19th century–present) and their accent from Photogravure (technique, 19th century–present).

## What to make

Make the kind of thing Collotype exists for: exhibitions and teaching that compare Collotype with neighbouring print techniques, or publications studying lines, tones and paper through documented works. Choose one subject and hold it across all four.

## Structure comes from Collotype

- Detailed images derived from photographs or originals
- Apparently continuous tonal changes
- Fine irregular reticulation under magnification
- Tone without a regular dot screen

Composition: Pair details with the whole image and distinguish the microscopic pattern from overall tone. Type and lettering: Keep lettering in the work separate from added labels; place medium, artist and date outside the image.

## Accent comes from Photogravure, used sparingly

- Photographically derived detail
- Rich printing-ink blacks
- Fine grain carrying tonal changes
- Plate image in relation to paper

Let one material quality come from it: Check the collection medium record and the paper and ink; do not infer materials from screen colour alone.

## Colour and feeling

Build the ground on #E1D5BF, carry the structure in #8D8071 and #403B35, and let a single accent come from #8D8071. These are read off real works, so a direction rather than a fixed palette.
Feeling to carry: technique, calm, luxury.

## Where they fight

- Collotype and Photogravure are techniques rather than looks. Decide which one runs last in the process, because that is the one that will show.

## What goes wrong

- Collotype: A screen image may conceal the diagnostic pattern. Use the collection's medium record, and distinguish collotype from collagraph.
- Photogravure: A sepia palette or plate border alone proves nothing. Check the recorded printing process and distinguish later reproductions.

## Across the four

Keep the roles fixed in all four. Vary the framing, the scale and the arrangement so the set shows what this pairing can do rather than four versions of one picture.

## Constraints

- Do not imitate, reference or name any specific artist, studio, brand, character or copyrighted work.
- Do not reproduce the composition of an existing work.
- Produce original compositions in the general period languages described above.

Design specs for each entry: https://indexstyle.org/styles/collotype/design.md · https://indexstyle.org/styles/photogravure/design.md