Hotdog

Anyone watch "The Bidding Room" on the BBC?
I was watching the first episode of the new series and a late Victorian sovereign/half sovereign change machine made an appearance. It's a different type to the one listed by @Hotdog and little a little more basic. Here's the link to the episode, fast forward to 21 minutes in: 
https://www.bbc.co.uk/iplayer/episode/m001x0vz/the-bidding-room-series-5-1-jackinthebox
 

Not sure if I haven't posted this before.
A good read is "The Royal Mint: Its working, Conduct, And Operations, Fully And Practically Explained" by George Fredrick Ansell, written 1869. I've attached a link to the third addition which maybe read in pdf format or downloaded. https:/archive.org/details/royalmint01anse 
Ansell mentions why the number on the shield coins was introduced. 
Also another worthwhile book by Ansell written in 1862 "A Treatise On Coining".  Available as a reprint and online. 

Not sure if I haven't posted this before.
A good read is "The Royal Mint: Its working, Conduct, And Operations, Fully And Practically Explained" by George Fredrick Ansell, written 1869. I've attached a link to the third addition which maybe read in pdf format or downloaded. https:/archive.org/details/royalmint01anse 
Ansell mentions why the number on the shield coins was introduced. 
Also another worthwhile book by Ansell written in 1862 "A Treatise On Coining".  Available as a reprint and online. 

Not sure if I haven't posted this before.
A good read is "The Royal Mint: Its working, Conduct, And Operations, Fully And Practically Explained" by George Fredrick Ansell, written 1869. I've attached a link to the third addition which maybe read in pdf format or downloaded. https:/archive.org/details/royalmint01anse 
Ansell mentions why the number on the shield coins was introduced. 
Also another worthwhile book by Ansell written in 1862 "A Treatise On Coining".  Available as a reprint and online. 

Thanks for the various feedbacks

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

attached photograph shows a change machine where full or half sovereigns could be entered to receive 20 or 10 shillings. Apparently they were used in large shops; though I don't know how the  Sovereigns would have been verified for fakes. 

I've two full proof sovereigns a 1991 & 1992 with the original Royal Mint plastic sealed wrapper around the boxed coins. The certificates are visible inside. If I was selling, would they be more valuable with the wrapper in place i.e. indicating that the coins have never been handled, or would prospective buyers need to see photos of the coins ??
 

I've two full proof sovereigns a 1991 & 1992 with the original Royal Mint plastic sealed wrapper around the boxed coins. The certificates are visible inside. If I was selling, would they be more valuable with the wrapper in place i.e. indicating that the coins have never been handled, or would prospective buyers need to see photos of the coins ??
 

If you do decide to sell them one day, why not take pictures of them still sealed and then opened. What about even a small video showing the process of you opening them for the first time. That way the potential buyer can see they were sealed but also the coins. Sites such as eBay allow you to add videos now. However always try on here first. Save on fees and help other collectors/stackers, have the opportunity of acquiring what look to be two very nice coins. 

The way things are now on the internet, I can’t see too many people wanting to buy an unopened box? It’s a box in a plastic bag … what’s so important about the plastic?

There is always some scepticism around whether a claim of a coin being unhandled and of grading quality is true. The plastic helps with reassurance, but ultimately good pics of the coin wins. 
However, you do see coins going for premiums in auctions with poor pictures (i.e. with little evidence of proof grade). Perhaps thats the exit for these??  
 

Photo of coin is the most important thing. Who is to know how those coins were stored over so many years. They could have been in a damp cellar.  At the end of the day, you will be selling a proof coin, not a promise that there might be a nice proof coin in the box.