Hall's Collieries Limited signing-on book Columns for date of first employment, name, address, age, occupation, date of first employment at a coal mine, place of last employment, whether ever suffered from Nystagmus, whether qualified to work alone, whether in receipt of a copy of the rules and understood the conditions of employment, signature, witness to signature, and date of leaving (several columns often left blank). Jun 1926-Oct 1951