Hand written double sided letter from Crusoe Apiary Kangaroo Flat dated August 3rd to a Mr Crellin signed Geo Miller, letter makes reference to a clock & repairs, on reverse are instructions and recipes for Electro Gilding, Water Gilding without battery, Silvering without battery, Electro Silvering.communication, postal, letters, letter found in back of book, stationary engine driving, item number 8502.233