Magneto identification

Hi all, just wondering if anybody can identify the manufacturer of this magneto. Has patented 1921 on the casting and HCT with an emblem next to it but, i can't find any information. Any help appreciated

That should have said patented sep 21 1915

Can't quite make out the logo MP?

Oddly Green Spark plug has this (just random searching)

https://www.gsparkplug.com/1x-replica-champion-spark-plug-cap-htc-red.html

Is this not what might be termed "a spark generator"? I see a gear at the rear but no points so it looks just like a revolving coil inside a magnetic field. The connection suggests the same. It would need an "interruptor" to break the generated circuit to make a spark. Just a thought...
Eric

i'll see if i can take a better pic of the logo, it is quite small. I think your right Eric as in it looks like a coil in a magnetic field but, you lost me a bit after that, not that technically minded.
Thanks for the input.
Steve

I think Eric is on the right lines. However, my guess is that it may be be a dynamo from a Stromberg Carlson (of Chicago) wall mounted telephone. The Home Telephone Company (hence the HTC) were so impressed that they bought out Stromberg Carlson and moved production to Rochester.  A picture of the drive end may confirm.

Just a bit more poking and now I'm not so sure.   Maybe from a WWI field telephone?

Looks like a low tension magneto from an Amanco engine to me, this smaller magneto was in use from 1922.

Blue Cat,
It could well be a late Amanco Hired Man or similar magneto. Good thinking.

Eric

Thanks gents - not au fait with Amanco. Can you shed any light on the HTC? Could they maybe hsve supplied Amanco

If it is an Amanco LT magneto then they were built in-house at the Associated factory in Waterloo, Iowa, USA. No idea what the HTC means, could be a casting identification mark ? The magneto itself was known as a type 25, or R25.

This is a photo from 'Smokstack' a US stationary engine website community. Yours looks like the one on the far left.

The caption reads:
'These are the magnetos used on Associated's, 2 bolt JD style, alloy 4 bolt, bronze 4 bolt flat sides and an earlier bronze 4 bolt with rounded edges.'

Yours also looks to have the end of the word Associated visible on the bottom.

Another photo of the emblem and a couple of the other end. Sorry i seem to have duplicated them. Thanks for all the input so far Gentlemen

Duplicates removed.
You can do it yourself - just select Edit and delete the duplicate urls

Thanks woodsman