Diameter: 23.03-23.43 mm. The back of the one pound coin is a darker gold / bronze like gold (see images, I have circled the darker pound coin - colour may vary from the actual screen).
This is different from NORMAL 12 sided one pound coins, as both sides of coins SHOULD be the same gold colour. I believe this could be considered minting defect.
Be the 1st person EVER? To own this one of a kind minting defeat! The images are of the actual coin for sale. Please take a look at the provided pictures to assess the condition of the item to your satisfaction. We can be contacted 8am-9pm, Monday-Sunday, 365 days.We reply to all messages within 24 hours but will endeavour to reply within 30mins of receiving message. This item is in the category "Coins\Coins\British\Decimal Coinage (c. The seller is "houseoftsang" and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Republic of, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Canada, Brazil, Japan, New Zealand, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, Korea, South, Taiwan, Bangladesh, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Ecuador, Guernsey, Gibraltar, Guadeloupe, French Guiana, Iceland, Jersey, Cambodia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Martinique, Nicaragua, Pakistan, Peru, Paraguay, Saudi Arabia, United Arab Emirates, Chile, Bahamas, Colombia, Philippines, Uruguay, Vietnam.