53 Pa. Stat. § 15915
If any temporary or definitive bond or note issued under this act shall become mutilated or be destroyed, stolen or lost, the city shall execute and any sinking fund depository, fiscal agent or trustee for bondholders shall, if required, authenticate and deliver a new bond or note with appropriate coupons attached in the case of a bond or note in coupon form, of like series and principal amount as the bond or note attached coupons, if any, so mutilated, destroyed, stolen or lost, upon surrender and cancellation of such mutilated bond or note and attached coupons, if any, or in lieu of and in substitution for the bond or note and coupons, if any, destroyed, stolen or lost, upon filing with the fiscal agent or trustee, evidence satisfactory to it, that such bond or note and attached coupons, if any, have been destroyed, stolen or lost and proof of ownership thereof and upon furnishing of satisfactory indemnity and complying with such other reasonable regulations as the city shall prescribe, and paying any reasonable expenses, including counsel fees, as the city or the fiscal agent or trustee may incur. Mutilated bonds or notes and appurtenant coupons, if any, surrendered shall be cancelled.
53 P.S. § 15915