Selecting the Correct Size Standard Lighthouse Coin Capsule

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Lighthouse coin capsules provide the ideal protection for your coins. These capsules have been tried and tested to be transparent and scratch resistant, feature a secure fastening and also are very easy to open. 

To select the size you need measure your coin accurately in millimeters and choose the appropriate capsule. The tables below give the sizes needed for most common coins.
 
 

Decimal Coin and Capsule Sizes

Type of Coin Exact Diameter Capsule Size
£5/25 p crown 38.61 mm 39 mm
£2 28.40 mm 29 mm
£1 22.50 mm 23 mm (But We Prefer
22 mm Airtite Rings)
50 p (Up To 1997) 30.00 mm 31 mm
50 p (1997 To Present) 27.30 mm 28 mm
20 p  21.40 mm 22 mm
10 p (Up To 1992) 28.50 mm 29 mm
10 p (1992 To Present) 24.50 mm 24.50 mm
5 p (Up to 1990) 23.59 mm 24 mm
5 p (1990 To Present) 18.00 mm 18 mm
2 p 25.91 mm 26 mm
1 p  20.32 mm 21 mm
1/2 p 17.14 mm 18 mm
 
 

Points to Note

The Royal Mint have re sized the 5 p, 10 p & 50 p coins.
The 1/2 p is no longer in circulation
The £1 is deeper than a standard capsule so we prefer to use a 22 mm airtite rings for ours.
The Royal Mint have plans to change the design and size of the £1 coin in the near future.
These sizes are correct as of 2014.
 
 

Pre - Decimal Coin & Capsule Sizes 1797-1970

Type of coin Exact Diameter Capsule Size
Crown (1887 Onwards) 38.60 mm 39 mm
Crown (1844-1847) 38 mm 39 mm
Crown (1818-1822) 37.60 mm 38 mm
Dollar (1804) 41 mm 41 mm
Double Florin  36 mm 36 mm
Three Shillings 34-35 mm 35 mm
Half Crown 32 mm 32 mm (Tight Fit)
32.5 mm (Loose Fit)
Florin (1893-1970) 28.50 mm 29 mm
Florin (1887-1892)   29.50 mm 30 mm
Gothic Florin  30 mm 31 mm
Godless Florin 28 mm 28 mm
Eighteenpence 26 mm 26 mm
Shilling (1953-1970)
Shilling (1902-1936)
23.6 mm 24 mm
Shilling (1936-1952)
Shilling (1834-1837)
Just over 23 mm 24 mm
Shilling (1838-1901)
Shilling (1816-1829)
23.5 mm 24 mm
Sixpence 19 mm 19.5 mm
Fourpence (Groat) 18 mm 18 mm
Threepence (Brass) 21 mm 22 mm
Threepence (Silver) 16 mm 16.5 mm
Cartwheel Twopence 41 mm 41 mm Airtite Capsule
Three halfpence 12 mm 12 mm
Penny(1860-1970) 30.81 mm 31 mm
Penny (1825-1860) 34 mm 34 mm
Penny (1806-1808) 35 mm 35 mm
Cartwheel Penny (1797) 36 mm 36 mm Airtite Capsule
Half Penny (1860-1910) 26 mm 26 mm
Half Penny (1825-1860) 28 mm 28 mm
Half Penny (1806-1807) 29 mm 29 mm
Half Penny (1799) 31 mm 31 mm
Farthing (1860-1956) 20 mm 20 mm
Farthing (1821-1848) 22 mm 22 mm
Farthing (1806-1807) 21 mm 21 mm
Farthing (1799) 23.50 mm 24 mm
Half Farthing 18 mm 18 mm
Third Farthing 15.50 mm 16 mm
Quarter Farthing (1827-1844) 16 mm 16.5 mm
Quarter Farthing (1839-1853) 13.5 mm 14 mm
 
 

Points to Note

The Cartwheel coins are too deep for a standard capsule so we recommend the airtite foam ringed capsules.
When these coins where in circulation there were quite a few changes made to the sizes.

 
 

Maundy Coin & Capsule Sizes

Type of coin Exact Diameter Capsule Size
Silver 4d (1817-Present) 18 mm 19 mm
Silver 4d (1800) 19.5 mm 20 mm
Silver 3d (1817-Present) 16 mm 16.5 mm
Silver 3d (1800) 18 mm 19 mm
Silver 2d (1817-Present) 13 mm 14 mm
Silver 2d (1800) 14 mm 15 mm
Silver 1d (1817-Present) 11 mm Airtite Ring 11 mm
Silver 1d (1800) 12 mm Airtite Ring 12 mm
 
 

Points to Note

Because of the small size of the Maundy money you might consider putting them all in Airtite foam ringed capsules.
 
 

UK Gold Coins & Capsule Sizes

Type of coin Exact Diameter Capsule Size
£5 Sovereign 36.02 mm 36 mm
£2 Sovereign 28.40 mm 29 mm
Full Sovereign 22.05 mm 22.5 mm
Half Sovereign 19.5 mm 19.5 mm
Quarter Sovereign 13.50 mm 14 mm
Britannia 1 oz 32.69 mm 33 mm
Britannia 1/2 oz 27 mm 27 mm
Britannia 1/4 oz 22 mm 22.5 mm
Britannia 1/10 oz 16.50 mm 17 mm
Britannia 1/20 oz 12 mm 12 mm Airtite Ring
Britannia 1/40 oz 8 mm ?
 
 

Points to Note

The 1/40 oz Sovereign is too small for all of the standard capsules, the only option we can think of is to cut your own aperture in a piece of foam.
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