Quick answer
A first edition of Tower of Glass by Robert Silverberg (Charles Scribner's Sons, 1970) is identified by: Charles Scribner's Sons, New York, 1970. US Charles Scribner's Sons first hardcover edition; this is the true first printing of the novel.
Checklist — a true first has these:
- Charles Scribner's Sons, New York, 1970P-027924
- First edition identified by the Scribner 'A' on the copyright page together with the Scribner seal (the publisher's first-printing convention for this period): the capital 'A' stands alone with no later letter-number impression codeP-027925
- Issued in publisher's cloth with a priced dust jacket; the jacket should carry its printed price, and a price-clipped jacket cannot be dated by the jacket alone but does not by itself indicate a later printingP-027926
- Publisher imprint reads Charles Scribner's Sons
- Not a book-club edition (see below)
| Author | Robert Silverberg |
|---|---|
| Publisher | Charles Scribner's Sons |
| Year | 1970 |
| True first | US edition |
| Format | Hardcover (trade) |
| Key point | Charles Scribner's Sons, New York, 1970 |
| Book-club edition exists? | No |
The points of issue
- Charles Scribner's Sons, New York, 1970
- First edition identified by the Scribner 'A' on the copyright page together with the Scribner seal (the publisher's first-printing convention for this period): the capital 'A' stands alone with no later letter-number impression code
- Issued in publisher's cloth with a priced dust jacket; the jacket should carry its printed price, and a price-clipped jacket cannot be dated by the jacket alone but does not by itself indicate a later printing
How Charles Scribner's Sons marked a first edition
- The famous capital 'A' on the copyright page denotes a first printing. Introduced late 1929 and used 1930-1973.
Full Charles Scribner's Sons first-edition guide →
How to verify your copy, step by step
- Find the copyright page — the verso (back) of the title page.
- Confirm the first-edition statement — look for “First Edition,” “First Printing,” or the publisher’s equivalent wording.
- 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.
- Verify this is the US true first — not a later-market or reprint edition.
- 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.
- 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?
US Charles Scribner's Sons first hardcover edition; this is the true first printing of the novel.P-027927
Telling it from reprints & book-club editions
No separate book-club edition issue is noted for this title. Later Scribner printings replace the 'A' with a letter-number impression code (for example B-2.71 for the February 1971 second printing), so any such code on the copyright page marks a later printing rather than the first.P-027928
Frequently asked questions
Is my copy of Tower of Glass a first edition?
A first edition of Tower of Glass by Robert Silverberg (Charles Scribner's Sons) is identified by: Charles Scribner's Sons, New York, 1970.
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. US Charles Scribner's Sons first hardcover edition; this is the true first printing of the novel.
Is the book-club edition the same as the first?
No separate book-club edition issue is noted for this title. Later Scribner printings replace the 'A' with a letter-number impression code (for example B-2.71 for the February 1971 second printing), so any such code on the copyright page marks a later printing rather than the first.
I have a first edition of Tower of Glass — what should I do?
First, document the copy: photograph the copyright page (the number line and any edition statement) and the dust-jacket flap — an unclipped, priced jacket matters. Confirm the points of issue above against your copy, and use the free First Edition Checker to decode the printing. To sell, the author’s collecting guide covers the market. And if you are clearing books in the Albuquerque area, the New Mexico Literacy Project offers free pickup, any condition, and makes sure collectible copies are identified rather than discarded.
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.
Related first editions
How to cite this page
New Mexico Literacy Project. “Is Tower of Glass by Robert Silverberg a First Edition? Points of Issue.” NMLP First-Edition Identification Reference. Reviewed 4 July 2026. Retrieved from https://newmexicoliteracyproject.org/first-edition/tower-of-glass. Licensed CC BY 4.0 — part of the open Canonical First-Edition Points of Issue dataset (DOI 10.5281/zenodo.21184548).