There was no 1891 British Two Pound coin issued.
This will not work 100% of the time, but if you enter your question as follows and the answer is already on the site, you should see what you are looking for. What is the value of a 1941 British Threepence What is the value of an 1891 British Sovereign etc
Modified coins have no collector value. Assuming that the coin has not been damaged or altered in any way by the jewellery making process, the Sovereign might get anything up to £165 GBP. If the coin has been damaged or altered, it should get the current bullion value of the gold it is made from.
50-100 USD
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There were two variants of the British 1891 Penny minted. The usual type, and one with date more widely spaced. The Penny with wide spaced date seems to have a significantly higher value for uncirculated coins.
British Naturism was created in 1891.
Cœur double was created in 1891.
A British 1902 gold Two Pound (double Sovereign) coin (QV), uncirculated and in absolute mint condition could fetch up to £800 GBP. If it has been circulated but still in good condition, it might fetch anything from £325 to £625 GBP. A British 1902 gold Two Pound (double Sovereign) coin (QV)(Matt Proof FDC), uncirculated and in absolute mint condition could fetch up to £700 GBP. A British 1902 gold Two Pound (double Sovereign) coin (QV)(Proof FDC)(minted in Sydney), is considered extremely rare. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
There were no 1891 coins struck.
$1.00
I don't know , I would like to find the value of the 4440 1891 ser 171906
Association of the British Pharmaceutical Industry was created in 1891.