Save 20% on ALL Graded Comics at Comic Box!

If you’ve been waiting for the right time to add another graded comic to your collection, this is it!

For a limited time, Comic Box is offering a massive 20% OFF ALL GRADED COMICS on our website.

Whether you’re searching for a major Silver Age key, an iconic first appearance, a signed collectible or simply that special slab you’ve had your eye on, you can now make a serious saving.

💥 20% OFF ALL GRADED COMICS

Our offer runs from:

Thursday 20th August to Monday 31st August 2026

Getting your discount couldn’t be easier. Simply add your chosen graded comics to your basket and enter the following voucher code at checkout:

🎟️ USE CODE: GRADED20

Your 20% discount will then be applied to qualifying graded comics in your order.

Some Big Savings to Be Had!

With 20% off, the savings can really add up — particularly if you’ve been considering one of the bigger books in our graded collection.

A £100 graded comic becomes £80.

A £250 graded comic becomes £200.

A £500 graded comic becomes £400.

And a £1,000 graded comic becomes just £800.

That makes this a fantastic opportunity to pick up something special for your collection while keeping a little more money in your pocket.

🔥 Major Keys, Classic Comics & Collectible Slabs

Our graded comic selection includes books from across the world of comic collecting, from vintage classics and important key issues to modern collectables, signed comics and much more.

Many of our graded comics are single-copy items, so once a particular book has sold, it may not be available again.

If there’s something you’ve already been keeping an eye on, we wouldn’t recommend leaving it until the last minute!