Grace’s Guide is a timeline format of the history of British industry, including ammunition and explosive manufacturers. This is not a comprehensive guide, but more of a summary of milestones for a large number of manufacturers, including changes of ownership, patents applied for, industrial accidents (explosions), legal disputes, etc. Most pages have a cross-reference to other related pages and a source of references.
Below is an excerpt from the “About Grace’s Guide” page:
Grace’s Guide is a not-for-profit project dedicated to publishing the history of industry in the UK and elsewhere. Its aim is to provide a brief history of the companies, products and people who were instrumental in industry, commencing with the birth of the Industrial Revolution and continuing up to recent times. It provides an overview of topics and points other researchers to the source materials so they can find further information.