1. Test Tube Chess: a Comprehensive Introduction to the Chess Endgame Study
by Roycroft, A. J 
Price: USD 39.10
Dealer: Alibris, ThriftBooks-Baltimore via Alibris
Description: Stackpole Books 1972 Hardcover Fair Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. 

2. Test Tube Chess: A Comprehensive Introduction to the Chess Endgame Study
by Roycroft, A. J 
Price: USD 39.35
Dealer: Abebooks, ThriftBooks-Atlanta
Description: ISBN10: 0811717348, ISBN13: 9780811717342, [publisher: Stackpole Books] Hardcover Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less 1.3 [AUSTELL, GA, U.S.A.] [Publication Year: 1972]  

3. Test Tube Chess : A Comprehensive Introduction to the Chess Endgame Study
by A. J. Roycroft 
Price: USD 43.10
Dealer: Biblio, ThriftBooks
Description: Stackpole Books, Date: 1972. Hardcover. Acceptable. Disclaimer:A readable copy. All pages are intact, and the cover is intact. Pages can include considerable notes-in pen or highlighter-but the notes cannot obscure the text. At ThriftBooks, our motto is: Read More, Spend Less.Dust jacket quality is not guaranteed. 1972. Stackpole Books ISBN 0811717348 9780811717342 [US] 

4. Test Tube Chess: A Comprehensive Introduction to the Chess Endgame Study
by Roycroft, A. J 
Price: USD 106.05
Dealer: AbebooksUK, dsmbooks
Description: ISBN10: 0811717348, ISBN13: 9780811717342, [publisher: Stackpole Books] Hardcover Acceptable [liverpool, United Kingdom] [Publication Year: 1972]