Here are 10 recent sales of SEA STORIES MAGAZINE from eBay:

SEA STORIES MAGAZINE – Aug. 5. 1923 sold for $125.00 “Buy It Now”
Authors: “Mystery” by C. S. Montanye;
“A Matter of Viewpoint” by Captain A. E. Dingle (Reprinted from PEOPLE’S – Feb. 1916);
“The Tyranny of Fear” by Morgan Robertson (Reprinted from The POPULAR MAGAZINE – Nov. 15, 1912; “South of the Line” by George Ethelbert Walsh
“Magazine is in very good condition. Covers have a little wear, small edge tears, pieces missing edges on back, spine is a little rough at ends. Pages nice lightly tanned. No markings or signs of previous ownership.Book measures 6-3/4” by 9-3/4”. Page count is 144.”
SEA STORIES MAGAZINE – Sept. 20, 1923 sold recently on eBay for $57.00
Authors: “The Boomerang” by Captain A. E. Dingle

(reprinted from PEOPLE’S MAGAZINE – March 1916); “Yellow Plunder” by Mayn Clew Garnett (pseudonym of T. Jenkins Hains) (Reprinted from TOP-NOTCH MAGAZINE – July 1, 1911);
“In the Valley of the Shadow” by Morgan Robertson (reprinted from The POPULAR MAGAZINE – May 1, 1910); Frank Richardson Pierce
Cover Design – LA Shafer Size – about 7×10″ No. Pages – 144 Condition – issue has somewhat worn cover edges (primarily due to their being a larger size than the page sizes), binding of text block fine, text block page edges were unevenly trimmed/assembled by the publishers.”

Two Issues together of SEA STORIES MAGAZINE, April 1925 and Feb. 1929, sold for $144.50

April 1925 – Authors: “The Good Ship Change and Rest” 3RD Tim Brady” appearance of 8) by L. Paul (pseudonym of Ludwig Paul Kuhring);
“A Strange Adventure” by T. Jenkins Hains (with the pseudonym Mayn Clew Garnett it make him a semi-prolific writer);
“The Locked Cabin” by Morgan Robertson (Reprinted from The POPULAR MAGAZINE – Feb. 1, 1913);
“Jane Hardy, Shipmaster” (“Captain Michael O’Shea” appearance) by Ralph D. Paine (all 5 stories in SEA STORIES were reprints from The POPULAR MAGAZINE from 1912 and 1913).

Feb. 1929 – Authors: Robert Carse is the only prolific author here.
“Cover Artists – April by Anton Otto Fischer, February by George H. Wert
Size – about 7×10″ No. Pages – the April issue contains 192 pages of articles, the February issue contains 144 pages plus some advertising pages.
Condition – both issues have worn cover edges (primarily due to their being a larger size than the page sizes), binding of text block fine for both issues, text block page edges were unevenly trimmed/assembled by the publishers, and the April issue has an owner’s name on cover written in pencil.”
Two 1928 Issues together of SEA STORIES MAGAZINE, Feb. and June, sold for $152.50

Authors – Feb. 1928: “Friday Ship” by Frank H. Shaw; “Fishin’ ” by Robert Carse;
“A Marine Muddle” by T. Jenkins Hains (pseudonym of Mayn Clew Garnett);
“Square Sails Off Barbary” (Part 4 of 4) by Warren Elliot Carleton (who wrote the “Bronc Evans”, “Dusty Radburn”, “Gila Jack”, and “Sailor Anson” series over at WILD WEST WEEKLY, and the “Brick and Boots” series in TOP-NOTCH MAGAZINE)
“Magazines are very old, have frayed pages, and have been heavily used.”

Two 1928 Issues together of SEA STORIES MAGAZINE, July and Aug., sold for $91.77

July 1928 – Authors: “The Madmen of the “Zodiac” ” by John Murray Reynolds;
“The Dilemma’s Horns” by T. Jenkins Hains (pseudonym of Mayn Clew Garnett);
“Pete Peterson’s Pipe” by Don Waters;
“Swordfish for Boston” by Warren Elliot Carleton
Aug. 1928 – Authors: “Spanish Moon” (Part 2 of 4) by Robert Carse”;

Cover Artists – July (1928) by L. A. Simonsen,
August (1928) by Victor Petry
Size – about 7×10″ No. Pages – each issue contains 144 pages of articles, plus some advertising pages.
Condition – both issues have worn cover edges, August issue has separated covers, binding of text block fine for both issues, covers have a short 1″ tear in from an edge, text block page edges were unevenly trimmed by the publishers.”

SEA STORIES MAGAZINE – Aug. 1929 sold for $59.89
Authors: Frank H. Shaw
“Cover Design – H. C. Murphy Size – about 7×9.45″ No. Pages – 144 Condition – issue has worn cover edges (primarily due to their being a larger size than the page sizes), back cover has something stuck to it in the middle, binding of text block fine, text block page edges were unevenly trimmed/assembled by the publishers.”
SEA STORIES MAGAZINE – Sept. 1929 sold for $56.55

“Garbanzos” by John Murray Reynolds; Warren Hastings Miller”
A COMPLETE GOOD COPY. FIRST THREE PAGES ARE DETACHED BUT PRESENT. MINOR TEARS AND FOLDS AROUND EDGES OF COVERS”
Bookery list 1922-1929 SEA STORIES MAGAZNE as “Uncommon” and the 1930 issues as “Scarce” $10.00 – $25.00 – $50.00. All issues never show up for sale, buyers know it, and usually go for a premium over the listed prices. I’d rate them all as “Scarce”.
There are four long-run, “generically” titled Pulps that are much more scarce than their “generalized” brethren (e.g.: ALL WESTERN MAGAZINE, PRIVATE DETECTIVE STORIES, RANGELAND ROMANCES, etc.) and those are COWBOY STORIES, SEA STORIES MAGAZINE, GHOST STORIES, and 1910-1919 issues of SHORT STORIES. How were the findings of these issues during the early PULP CON CONVENTIONS, were they always as scarce as they seem to be today ?
ENJOY PULPS – David Lee Smith