Hi. I have a link of the main grammar book of Ancient Greek that we were taught during greek high-school (a decade+ ago):
I think it’s still the same textbook. It’s a bit on the advanced side if you are a beginner in the language. It’s aimed on native greek students age 12 to 17. (7th to 12th grade). I kinda ignored this book in 7th grade due to difficulty, but later proved to be a bit useful.
Check it if your are interested in Ancient Greek language. The pdf is free.
Also, this pdf
http://www.24grammata.com/wp-content/uploads/2013/08/H.G.-Liddell-R.-Scott-24grammata.com_.pdf
contains an Ancient Greek to English dictionary, from 1940.