Heck No.....Any Cortland Linen
Cortland stopped being made long ago but you still can get #9....it's still around......around $80 per 50 yd roll.....but Cortland #12....forget about it. It's out there and I even offered $200 on AZ for 50 yds of Cortland #12 and was contacted by people that had some but none were willing to part with any......IMO.....#12 (white with black speck) is the hardest to find.......I have a Wanted thread running right now looking once again for some Cortland Linen #12.......and of course, as you might imagine, no luck so far.
Look for any Cuttyhunk Irish Linen.....Good Luck.
Matt B.