no, nothing can be first edition without a stamp. if you dont have a stamp your not first edition,

The Ohio State belt buckle by Tony Lama does not specify "first edition" on it. To distinguish between the first edition and regular edition, you can refer to the serial number on the back of the belt buckle. The first edition typically has a lower serial number compared to the regular edition.

A true first edition of a Stephen King book is the first printing of the first edition, often distinguished by specific publisher details like a statement on the copyright page. A regular first edition can include later printings of the first edition that may not have the same value or rarity as the true first edition.

The first edition of "Tell Me Why" was released in 2020 by the game development studio, Dontnod Entertainment.

The special edition of twilight has the first chapter of Midnight Sun at the end