7 years together is a lucky milestone, one to celebrate and saying you have been married for 7 years seems so much longer than 6! And yes I know it is only one year but it definitely sounds longer.
You have made it into the old married couples group :)
Traditionally your 7th anniversary is celebrated with wool or copper.
Wool represents the warmth and security you have as a married couple.
Copper represents good luck and good fortune, something that you have in bucket loads.
On the modern list 7 years is celebrated with desk sets, and really we can’t find a meaning or a reason why such a gift would even exist on an anniversary list! The joy of writing each other love letters is at least a very romantic gift that could come from great desk items.