Thanks for all of the info. and the link to the article on precancels was helpful also.
I wasn't attempting to identify the precancel originally shown as any one type, I was simply outlining the various precancels known for that city. The info. I have been able to get off the internet does not show examples of L1-E, L2-HS, etc., so I start having trouble when attempting to identify those varieties.
Getting back to Danbury, CT, based on what was stated previously, I would assume this is considered a Type 243 DLE for that location:

I'm getting it (but slowly...)