Is My Copy of The Sword of Rhiannon (Sea-Kings of Mars) a First Edition?

The points of issue

• First book edition is the paperback original Ace Double D-36, bound dos-a-dos with 'Conan the Conqueror' in the Ace double
• The text first appeared as 'Sea-Kings of Mars' in Thrilling Wonder Stories
• Ace double number D-36 and dos-a-dos format identify the first book edition

How Ace Books marked a first edition

• Primary method (pre-1968): a first printing carries NO printing statement and NO later-printing line on the copyright page. Ace applied this inconsistently, so treat the absence of a printing notice as suggestive, not…

Full Ace Books first-edition guide →

How to verify your copy, step by step

1. Find the copyright page — the verso (back) of the title page.
2. Check for a number line or dated printing — the lowest number present is the printing; a dated first printing with no later printings listed is the tell.
3. Rule out a book-club edition — a blind-stamp on the rear board or a jacket with no printed price marks a book-club copy.
4. Photograph four things — the front cover, spine, title page, and copyright page — the standard record for identification.

The dust jacket

For a collectible first edition the dust jacket matters as much as the book. Confirm the jacket is present and unclipped — the printed price should still be at the corner of the flap (a clipped corner or a price-less flap can indicate a book-club issue). First-state jackets can differ from later ones in the cover art, blurbs, or review quotations; where a specific first-state jacket point is known for this title it is noted above.

Binding & format

Where multiple bindings exist, the hardcover trade issue is usually (but not always) the precedence copy — confirm against the points above. Later printings often show cheaper cloth, thinner boards, or simplified spine stamping. A simultaneous signed or limited issue, when one exists, is a distinct state from the trade first.

Is this the true first?

The magazine ('Sea-Kings of Mars,' 1949) is the first text appearance; the Ace Double D-36 is the first book edition (a paperback original). Later standalone Ace reprints are first-thus.P-019313

Telling it from reprints & book-club editions

No book-club edition. Distinguish the dos-a-dos D-36 double from later single-volume Ace reprints.P-019314

Frequently asked questions

Is my copy of The Sword of Rhiannon (Sea-Kings of Mars) a first edition?

A first edition of The Sword of Rhiannon (Sea-Kings of Mars) by Leigh Brackett (Ace Books) is identified by: First book edition is the paperback original Ace Double D-36 (1953), bound dos-a-dos with 'Conan the Conqueror' in the Ace double.

How do I tell the first printing from a later one?

Check the copyright page. A stated first edition, a number line ending in 1, or a dated first printing with no later printings listed is the key. The magazine ('Sea-Kings of Mars,' 1949) is the first text appearance; the Ace Double D-36 is the first book edition (a paperback original).

Is the book-club edition the same as the first?

No book-club edition. Distinguish the dos-a-dos D-36 double from later single-volume Ace reprints.

I have a first edition of The Sword of Rhiannon (Sea-Kings of Mars) — what should I do?

First, document the copy: photograph the copyright page (the number line and any edition statement) and the dust-jacket flap. Confirm the points of issue above against your copy, and decode the printing with the free First Edition Checker. Clearing out books? I take them as a free donation and make sure collectible copies are identified, not discarded: free pickup in the Albuquerque metro (scheduled by route), the 24/7 drop box at 5445 Edith Blvd NE, or donor-paid mail-in from anywhere in the US. Questions? Call or text 505-250-3804.

Glossary

First edition

Every copy printed from the first setting of type. Collectors usually want the first edition, first printing (the true first).

First printing / impression

A single press run from that setting. The first printing is the earliest and most desirable; later printings are still the first edition but not the true first.

Number line (printer's key)

A row of numbers on the copyright page (e.g. 10 9 8 7 6 5 4 3 2 1). The lowest number present is the printing — a line including 1 marks a first printing (Random House deliberately ends at 2).

Points of issue

Specific physical details — a stated edition, a number line, a typo, a jacket state — that identify the true first printing.

Book-club edition (BCE)

A reprint made for a book club. Tells include a blind-stamped dot or square on the rear board and a dust jacket with no printed price. Not the true first.

First thus

The first appearance of a particular version (first paperback, first illustrated, first U.S. printing) — a first of that kind, not the first edition of the work.