Only the "VIP specimen" coins, of which very few were minted, were satin finish.
The general circulation coin, of which 9.64 million were minted, was cupro-nickel and neither coin had any silver content.
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At last you can realise the answer. I have a satin finish. Its an extremely rare coin R7 one to five examples known. My Mum went into a bank in 1965 to purchase what she thought would be the usual cupro nickel coin but was randomly handed the satin finish specimen and told to look after it as it would be valuable in years to come. Unfortunately Mum put it into her purse where it stayed for 35 years, when she gave it to me.
It is the same as the cupro nickel strike but is a fine gold colour highly polished and a beautiful piece. Its certainly not in the finest condition with some scratching, but is one of a very few. My son is the one who now owns the coin and can sell if he needs to.
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The satin finish coins were presented to VIPs, and just short of 1,000 of these were struck.
You would need to take the coin to a decent dealer to confirm that it is one of the satin finish VIP coins. It is still a rare coin and I would expect a really nice specimen to achieve or exceed its catalogue value of £1,500.
Of the British 1965 cupro-nickel Crown (Five Shillings)(Elizabeth II) Churchill Commemorative "satin finish VIP" coin, it is thought that about 1,000 coins were minted. Exact mintage figures are not given. Depending on who you choose to believe, they are currently classified as "rare" to "excessively rare".
The British 1965 cupro-nickel Crown (Five Shillings)(Elizabeth II) general circulation coin had approximately 19.64 million coins minted and are quite common.
They all have a satin finish.
A satin finish on a proof coin gives the field a softer appearance and not the crisp mirror finish found on other proof coins.
Assuming that you refer to the 1965 British Crown (Five Shilling) coin, they all look the same, it is only the finish that differs. The "satin finish" coin has a slightly dulled surface unlike the shiny mirrored surface of other coins. The satin finish coin was only minted in small quantities and would have been sold in a protective packaging to protect the finish of the coin.
A "specimen" coin is one which has a "special" finish, but not as high a quality finish as a "proof" coin. The 1965 Churchill "specimen" crown has a satin finish and was sold in limited quantities.
The surfaces of the coin will have a slightly matt finish. ie. it is not shiny like you would expect on regular coins. Also, at the time of issue, the coin would have been sold in some form of protective packaging to protect the finish. The packaging should have some reference to the metallic content of the coin and the fact that has a satin finish. There were very few of them minted.
Most circulation coins have a reasonably mirror-like background. For VIP's or for photographic purposes, a very few coins are struck where the dies have been sand-blasted to give a frosted 'satin' finish.
A circulated coin will be exactly that, something you got in your change with little nicks and scratches all over it. The VIP Satin-finish coin is one that is struck using specially prepared dies giving the coin a slightly dulled, but high quality finish and, will be in some form of a presentation package or case.
There were no coins issued in 1977 to commemorate Churchill. The 1965 cupro-nickel five shillings issued in 1965 to commemorate his death are worth from 50p to £1. In 1977 Queen Elizabeth II commemorated her silver jubilee. 25p coins were issued in cupro-nickel (now worth 30p - 50p) and those made in silver have a scrap value of around £15.
Satin finish will look very nice, but won't be as shiny as the semi-gloss. I would recommend the satin finish because it won't show scratches as much.
Chrome is a mirror-like finish on metals and some plastics. "Satin" chrome has a finish that is NOT mirror-like but brushed or dull.
The finish. Most people prefer stainless with a high shine (polished) finish. Satin has a dull finish to it (unpolished)
In most cases, satin is used on interior walls.