Jump to content
  • The above Banner is a Sponsored Banner.

    Upgrade to Premium Membership to remove this Banner & All Google Ads. For full list of Premium Member benefits Click HERE.

  • Join The Silver Forum

    The Silver Forum is one of the largest and best loved silver and gold precious metals forums in the world, established since 2014. Join today for FREE! Browse the sponsor's topics (hidden to guests) for special deals and offers, check out the bargains in the members trade section and join in with our community reacting and commenting on topic posts. If you have any questions whatsoever about precious metals collecting and investing please join and start a topic and we will be here to help with our knowledge :) happy stacking/collecting. 21,000+ forum members and 1 million+ forum posts. For the latest up to date stats please see the stats in the right sidebar when browsing from desktop. Sign up for FREE to view the forum with reduced ads. 

Edge Serration Count on UK Gold Guineas

Recommended Posts

As a natural progression of our project to count the edge serrations on gold sovereigns, following on from Krugerrands, we just did our first Edge Serration Count on a UK Gold Guinea:


As you can see, the result for our 1777 guinea was 107 serrations.

Guineas have diagonal edge serrations / reed / grains / ridges, and they were mainly producing using an edge rolling device, rather than a retaining collar. This means the serration gap are not quite as regular, and could possibly vary from one coin to the next. Currently I don't know, but as we check mor coins, we will build up a better picture.

It is worth noting our photographer's comments:

"You requested that we include guineas in the serration shots.  Not easy - they are not evenly spaced and because my method works out the angle for each serration and then builds the lines around that when i do this on a guinea it looks as though I miscounted.  I triple checked the count and it is 107 (although they nearly melded into one at one point there was enough to make a calculated estimate where the serration was).  So the finished "grid" image has a look as though it could be wrong.  I doubt you want me to move them individually (maybe an hours work - they need rotating as well)  Just looking for some direction on future guineas please."

It's great to have a team member who will make sensible judgements on things like this.

More guinea serration count photos to follow in good time.





Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Cookies & terms of service

We have placed cookies on your device to help make this website better. By continuing to use this site you consent to the use of cookies and to our Privacy Policy & Terms of Use