Hi!
On round 28th I’m confused with the instructions after K5.
Am I supposed to (k1,p1)4 times+ k1 on the first yarn over and then drop the remaining 3 yarn over? or should I slip the remaining 3 yarn overs?
Thank you
Free Doily pattern: https://www.ravelry.com/…/library/starry-night-doily-7574
Welcome to KH!
You can drop the remaining yarn overs off the needle. It’s actually all one big yarn over to make the large eyelet near each point.
Thank you 
I’m curious what the O means further up in the pattern. I’m gonna take a wag and guess that’s how they used to denote a yo? Thoughts??Example:
1st rnd: K each st around. 2nd rnd: * K 1, O. Repeat from * around. 3rd rnd: * K in the front and back of the next st, O, k 1, p 1 in the next st, O. Repeat from * around
The O means: “Over; throw the thread over the needle before inserting it into the next stitch”. (In round 27th and 28th they say “thread over 4 times” and “left 3 thread overs”.)
So it is a yarn over, just a different term.
Maybe you would like to check this 
Terms Used in Vintage Knitting Patterns » Knitting-and.com