Hall's Collieries Limited signing-on book for Swadlincote and Cadley Hill Collieries Arranged chronologically. Columns for date of first employment, full name (surname first), with tally number from March 1923, age, place of last employment, occupation, witness to signature, whether ever suffered from Nystagmus, address, whether qualified to work alone, whether received a copy of rules and understood conditions of employment, date of leaving (rarely used) and workman's signature Aug 1921-Jan 1924