Foreign silver is the best! Nice pickups...I think my favorite is the 1934 Panama 1 Balboa. Just picked up a '33 myself yesterday!
wow, they're all gorgeous, but man, I love the 1966 Bahamas 50 cent piece!! => sweet grouping of coins (thanks for showin' em!!)
To get the peso for melt you did good. Even in it's condition they usually have a 50% markup above melt.
Oh, and have you checked the 1927 R edge lettering to see if it's a **FERT** or *FERT* variety? Not really that much of a price difference in lower grades, looks like the **FERT** is slightly rarer.