Victoria/George Sovereign (?) 1900 & 1913 - Ideas Needed :-)

Hello there, was browsing through ebay and come accross a coin which looks very similar to one I found in my room (given to me from my grandma's house when we cleared it out) I think it is a sovereign or half sovereign - the one I found on ebay was described as gold.
The pendant and chain of the coin are hallmarked but I can't make out what the hallmarks say. I then found a second similar coin, which was a bit bigger. I would appreciate any help or suggestions in identifying these coins, I have posted pictures of both sides of them.

Thanks in advance :-)

Coin 1. 1913, picture od St George I think, King George on back. Hallmarked pendant and chain.
Coin 2. 1900, picture of St George I think, Queen Victoria on reverse.



Image: coins.jpg
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Image: coins reverse.jpg
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