A unique printing negative for the 50th Birthday Mickey Mouse logo. The logo features a silhouette of the famed company mascot in a striped birthday hat, surrounded by the text "Happy Birthday Mickey 50 Years". The black-out fluid negative transparency was used to develop the final logo image used to print multiple products for the 1978 birthday celebrations. The photographic technique of printing the negative in reverse restores the light and dark areas to their original tones. Measuring 8"x10" overall with an image size of 4.75"x4.75", this piece is in fine condition. The additional image is an example of a matchbook cover printed with this imagery and is shown for reference only, it is not included with the negative.