Coins from this period are not as elegant as coins from later years, they were stamped manually with a hammer and are rarely perfectly round. 1617 falls into James I second coinage period from 1604 to 1619 and the coin is most likely silver. Depending on the condition of the coin and what mint marks are on it, it could get anything from £15 to £90 GBP. A reputable coin dealer will be able to give a more accurate valuation.
There is no such thing.
Only a nerd would know
It appears that English Pennies were only minted in 1436 and then again in 1445.
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The Threepence was not introduced into the English currency until about 1550.
This is not enough information to give an accurate value amount. Need to know 'Type' of penny, 'Date' of penny and 'condition' of penny.
The face value of any coin is what is inscribed on the face of it. The face value of a 1 Penny coin is 1 Penny.
The pennies were placed into the floor to represent the year of consecration. They have virtually no value whatsoever as they are damaged. A 1962 penny in mint state would be worth around 30p - 50p.
The value of an orange one half penny varies by the year of the penny and the condition.
It is worth a penny
...If you can read the date on the penny, it is not an unstamped penny.