1 Australian crown 1937 and 5 Romanian Lei 1880. Are they legit? [opgelost]

Hello everyone,
A local seller is selling these 2 coins and I want to know whether they are real or not. The person is also selling a fantasy 1 dollar from 1851 which can be justified as ignorance about the coin because American coins aren't common here but it also casts doubt on the authenticity of these 2. From what I see they seem normal but I'm no expert, any help would be appreciated. (Sorry I don't have weight and diameter but if needed I could contact the seller but I wanted to ask here before doing that)

There are so many fakes and replicas of 5 Lei 1880. Some metrics (diameter, weight) of the coin would help if you want to know if it's legit. I've got one of these years ago for scientific purpose. For a comparison, here is a replica.

Basically almost all metrics are wrong. It weight 27.62 grams, diameter is 45mm and it's highly magnetic.

The 1937 crown is definitely a fake ... a good indicator is that it is missing the designer initials on both sides (HP & KG).
See here for comparison https://en.numista.com/catalogue/pieces12503.html

Thank you both, since 2 of the 3 coins he has are definite fakes and the last one is known for having a lot of imitations I guess that one is fake too. :)

Both are fakes 100%