Austro-Hungarian Empire 1 K. , Wathermark Crown In Circle?

Hello!

two days ago I had found an album with alot of Austro-Hungarian Empire stamp.
I had found some website too to have the chance to classificate and understand the most rare/ expensive of the lot.
Those that I show are all 1 K. and I think about a watermark as Crown in Circle not in Oval 11 1/2 . Hoping to had classified fine those 4 stamps I wait for your replay.

P.s.
by the stamps there was a 10 k Blue 11 1/2 seems always Crown watermark but I don't understand wich one, I will show it in a comment be cause i'm editing the image.

Thi is the 10 K.

It's tough to tell on the 1k, at first glance I believe you are right in that it is the circle not oval watermark. My older Scott catalog has those at $15.00 each used, so a nice find. The 10k looks like it's showing part of the crown in the center of either a circle or oval.

Thank you so much, usually I take a look to the rood if more vertical is in circle if more oblique is oval. If I can not see the rood I take a look to the shape of crown .. if the outsider lines are continue...smooth... is oval if I see no continue lines an "rustic" not smooth shape of the crown I think in circle.
if I can see just the "feet" of the crown , if they touch or the seems to much near to curve lines is for me in oval, if they does not touch and distant in unique way from the curve lines frame I count as circle.

I would like to show to you others.







I think 15 kr circle, 20 so problably in Oval , while, 25 in circle ( I have other 2 minimum cicle ) is in circle but have a problem infact the watermark ruin the design, seems, and then I ask to confirm. if was for usury had to be all above the stamp instead is just on watermark lines, i'm in error?