Logo 30/40/9mm. Brass stamp material > Tensile strength: 350-540 MPa. For ordinary quality steel it is approximately 400 MPa. [1MPa=10 kg/cm2 ] Brass stamp for embossing on paper , leather or other materials. Deep drawing for embossing. Base is thick. Threaded mount. Solid workmanship. Very good quality. Used only once to test the effect. Comes from the Porsche seller's reserve stock. Shipping is strictly registered via Poczta Polska. Shipping costs are not included in the auction fees and are not charged with any additional costs. Please bid carefully and quote with good luck. Base I have one and my wife uses it to bake cookies as a forming stamp Polish Post Please read the auction conditions about the auction I do not accept complaints about shipping costs Best regards