# Is "Unfinished Portrait" by Mary Westmacott (Agatha Christie) a First Edition?

> **Quick answer.** A first edition of Unfinished Portrait by Mary Westmacott (Agatha Christie) (William Collins, 1934) is identified by: UK Collins, London, first published March 1934 under the Mary Westmacott pseudonym; US edition Doubleday, Doran, New York, later in 1934. UK Collins (March 1934) is the true first edition, preceding the US Doubleday, Doran edition.

**Checklist — a true first has these:**
- UK Collins, London, first published March 1934 under the Mary Westmacott pseudonym
- US edition Doubleday, Doran, New York, later in 1934
- Second of the six Westmacott novels
- Publisher imprint reads William Collins
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Mary Westmacott (Agatha Christie) |
| Publisher | William Collins |
| Year | 1934 |
| True first | UK edition |
| Format | Hardcover (trade) |
| Key point | UK Collins, London, first published March 1934 under the Mary Westmacott pseudonym |
| Book-club edition exists? | — |

## Points of issue
UK Collins, London, first published March 1934 under the Mary Westmacott pseudonym; US edition Doubleday, Doran, New York, later in 1934. Second of the six Westmacott novels.

## Is this the true first?
UK Collins (March 1934) is the true first edition, preceding the US Doubleday, Doran edition.

## Telling it from reprints & book-club editions
Later reprints and reissues follow the 1934 first edition.

## Source
New Mexico Literacy Project — Is *Unfinished Portrait* by Mary Westmacott (Agatha Christie) a first edition? https://newmexicoliteracyproject.org/first-edition/unfinished-portrait
CC BY 4.0. Part of the Canonical First-Edition Points of Issue dataset (https://newmexicoliteracyproject.org/api/first-edition-titles.json). Last reviewed 2026-07-03.