Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Full resolution (1,402 × 818 pixels, file size: 42 KB, MIME type: image/png)
|This file is copyrighted. It will be used in a way that qualifies as fair use under US copyright law.|
Appears on these pages
After 1954, the dot after "Dr" was dropped. The oval logo was removed.