Get your collectibles signed, authenticated and CGC-graded
CGC Signature Series signings and JSA signature authentication — from cleaning and pressing to the final graded slab. We handle it end to end, from a UK family of collectors. No upfront payment.
Available now — CGC Signature Series
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Our services
CGC Signature Series
Get collectibles signed at a witnessed signing and graded with the famous gold label — cleaning, pressing and grading all included.
CGC/JSA Authentication
Already signed? We verify the signature through JSA and grade it with the gold label — with or without cleaning & pressing.
How it works
Get a quote
Send us your enquiry or message us.
Send comics
Post them to us — no upfront payment.
We do the work
Clean, press, sign and submit to CGC.
Graded & returned
Your slab comes back to you.
How we keep you updated
Our order system keeps you informed from the moment your comics arrive to the day they’re back with you.
Updates at every stage
An email at each step, so you always know where your comics are.
Before & after photos
See exactly what cleaning and pressing achieved.
Your CGC grade page
A link to each item’s CGC certification page.
PayPal invoices
Pay securely — only once it’s graded and ready to return.
What customers say
“Sent three comics for a CGC signing, Russ was extremely helpful throughout the whole process! And the graded comics were very well packaged upon return. Great 5 star service, highly recommend.”
Manage everything from Telegram
Link your Telegram to your Yappman account and handle the common stuff in seconds — grading questions, submission status, buying, selling and more, right inside the app.
Signings & submissions
Help with Signature Series, JSA authentication, or starting a new submission.
Submission status
Check where an existing submission is, any time.
Buy from Yappman
Search the store and get names, prices and links right in chat.
Sell to Yappman
Send us your sale list and we’ll be in touch.
Your data & submissions
Look up your details and recent submissions, with a support handoff.
Talk to a human
Anything else? The bot hands you over to our team.
Browse our inventory
Raw & graded comics, magazines & memorabilia — also listed on eBay.