That is a great looking kilt, but I'm afraid if you were told it was MacLean ancient when you purchased it, you were misled.

I hate to be the bearer of bad news, but this is MacLean ancient:


And this is the Hunting MacLean ancient:


Your kilt would appear to be Douglas modern:


(Tartan images from Lochcarron of Scotland, of their 16 oz Strome cloth range).

Aye,
Matt