A very clean set of Jennings bits by Gilpins of Cannock, 1/4" to 1" plus a useful 1-1/4" fast cutting centre bit suuplied with a new double ended auger bit file in a new British made auger roll.
Black country crucible is typically more wear resistant than Sheffield, so it takes a little bit more sharpening but tends to hold the edge for longer. The 5/16" and 7/8" bits have different stamps but are by the same manufacturer.
William Gilpin's works at Churchbridge near Cannock dates right back to 1800. From day one they kept everything possible in house, including mining their own coal, tilting their wrought iron, converting their own steel and forging every concievable kind of iron and steel tool or object you can think of. At the end of the day their thirsty workers would walk out of the works gate and into the adjacent Robin Hood pub (which they also owned) and reinvest their wages in refreshing beer (which they brewed). The whole enterprise ended up as part of the Britool group in the 1980's and the site is now under a housing estate next to Junction 11a of the M6.