General - 1-sheet vs Window-Card

I noticed that 'Window Cards' are many times called 'posters', like 1-sheets. That's correct?

Or shoud it be 'Other', with remark:'Window-Card'?

Thanks!

We consider a window-card like a poster. It's a format, like one sheet, three sheet, half sheet, or british quad.

We also call title lobby cards - posters since very often they match design of US half sheets. Please note that we accept other lobby cards very rarely, when actual posters are not available yet.

exactly right ...

Just like half sheets and inserts, WC's also fall under the parent category of vintage movie posters, just a different style.