Vintage Merino Wool Cardigan DEKKER Long Size Small

Get ready for winter! The tag says M but the knit of this cardigan has really tightened up (not boiled wool but quite thick) - so fabulous for a coat or sweater and I believe I should list as a small - so please check the measurements. It is a dusty khaki colour - so goes wth everything. Does it get any better than Merino wool??