The 1911 penny with the I of BRITT to a tooth has no relationship to the modified image seen in 1926. The I to tooth is as far as I can tell a recent discovery and have only seen it mention on a website and as far as I'm aware it doesn't as yet appear in any literature.  I was talking to Michael Goulby recently about this variety and he personal only knows of about 20 to exist sofar so it could be quite scarse. Anyway here is mine