Storm lantern with protecting ring between glass and hood.

Title: 
Storm lantern with protecting ring between glass and hood.
Author/Artist: 
Hänel, Karl Max.
Publisher: 
[London : HMSO], 1924.
Description: 
2 p., [1] folded leaf : ill. ; 27 cm.
Other Authors: 
Great Britain. Patent Office.
Bib ID: 
91468
Notes: 
Stamped "Openbaar gemaakt den 2 Oct. 1924."
Stamped "Bibliotheek Bur. Ind. Eigendom 23 Oct. 1924."
Patent specification.
Patent no. 221,405, accepted September 11, 1924.
Date of application in the U.K.: Jan. 3, 1924, no. 229/24.