It is a concise collection and adaptation of his blog posts that are based on lots of research looking at old brewing records and newspaper articles.Pattinson clearly lays out his plan in the introduction.
The markings below show which tangs where used and when.
Cool info on British brewing history with some (small) black and white photos to add depth to the descriptions. The issue is malt, beer's most important ingredient next to water.
These vintage British beers all used pale, amber, brown, and black malt in different quantity.
Case has become the undisputed favorite of knife collectors for a variety of reasons including the rich heritage, quality and variety of knives.
However, the Case dating system also adds to the appeal and collectibility because the knives can be easily identified and dated.