I would take a close look at this on trust, if you can run to it, but with a caveat emptor...
Find many great new & used options and get the best deals for COARSE BARBEL FISHING TACKLE - HARDY MARKSMAN SUPERO 11ft 6ins FLOAT ROD at the best online prices at eBay! Free delivery for many products.
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It could be one of two things as Hardy only made two 11' 6" Marksman/Supero rods, one a very light float rod and the other a Specimen Avon.
As both seem to be covered in the description it's not entirely clear to me but a message to the seller would likely clarify, if not Hardy (Pure Fishing) might be able to help with the rod's serial number:
I believe It's the later version 'Supero' without the trinket alloy stopper, full gold trimmed whippings and with a slightly different but very convenient rod bag and despite my failed best efforts to find out, I reckon they're the same blank as the original Marksman.
It wouldn't surprise me either if the Thomas Turner were coming off the same mandrels so maybe worth a look there too for brand new and peace of mind.
As mentioned earlier I rated mine at about 1.6lb t/c and a sweeter Avon action, which you can depend upon not to lock up when the cork is creaking, I cannot imagine and on a few occasions i've had to lock down on mid-doubles to try and stop them getting into the main flow and game over, it will do it with engagement and without going poker.
It's as much about confidence in yourself and how far you'll push the rod as it is in the rod itself, if you can step up and cross the line the rod will meet you every inch of the way and more.
Quite unusually these days the seller isn't taking the proverbial with the asking price if it is the Specimen Avon.