Quoted from Pickle:

Similarly I have an original Kiss playfield signed by Ace....he stared at it and asked where do I sign....told him anywhere he wanted. Told me he had never signed one before LOL...I am sure there is lots he does not remember from back in the day.
Got Peter Criss to sign it as well and he did not remember ever signing one before.
Now mine is a restored original playfield...for a wall hanger.
Signed items are hard to value....it’s the subject matter, whose signature and how rare/desirable an item is. Tons of backglasses have been signed by Kiss over the years. Playfields...not many if any have all 4 signatures.
So for pricing establish a base price for the item alone then add what the signature is worth. If the item is rare and desirable it can add value.....pins are niche...rock memorabilia collectors are picky about condition and rarity of items. If it is in excellent condition, rare, and desirable top dollar can be asked.
Also the condition of the signature matters. Nice crisp preserved ones display better and can be worth more.......