Historical information
From preface page; "This booklet introduces only the general information/ on the explosives which are comparatively popular in/ its use at present ....."
Physical description
Soft cover book.
Cover - cardboard, black ink print on front, spine and back. White background with red colour stripe on front.
50 pages, cut, plain, white colour paper. Illustrated with colour photographs and diagrams. Black ink charts.
20 pages, cut, plain brown colour paper. Illustrated, black ink technical drawings. End papers - red colour paper. Ink stamp on front end paper.
Inscriptions & markings
Ink stamp - blue ink. "JOHNSONS EXPLOSIVES S??? - remainder illegible.
