Beautiful certificate from the American Anti-Incrustation Company printed in 1879. This historic document was printed by the Baker & Gaskill Company and has an ornate border around it with a vignette of a steam ship at sea. This item has the signatures of the Company's President, and Secretary, and is over 134 years old.
Certificate Vignette American Anti-Incrustation Company made a practical and reliable apparatus for removing scale in boilers, and preventing its formation.