| Year | 1947 |
| Date | 17-Apr |
| Volume | 96 |
| Issue | 2,395 |
| Page | 491 |
| Category | Workshop |
| Part | |
| Title | Chemical Colouring of Metals |
| Author | G.Woodin |
| Notes | Imitation silvering of brass copper iron or silver, dead black brass or copper, black silver, black iron, slightly shiny black surface for copper, to tint aluminium blue, dulled aluminium, golden brass, red copper, tinting brass, greying iron |