15 2-67. Before a licensed manufacturer can mail a firearm, what form must be filed at the mailing post office? 1.     PS Form 1508 2.     PS Form 1509 3.     PS Form 1510 4.     PS Form 1518 2-68. A shotgun is nonmailable if the barrel(s) is/are less than what overall length? 1. 18 inches 2. 20 inches 3. 26 inches 4. 30 inches 2-69. An antique firearm is any firearm manufactured in or before what year? 1. 1776 2. 1898 3. 1900 4. 1909 2-70. When an article that is addressed to an APO or FPO is presented for mailing, what publication should be checked for possible mailing restrictions? 1.     DOD Postal Manual, Conditions Applied to Mail Addressed to Military Post Offices Overseas 2.     DMM, Conditions Applied to Mail Addressed to Military Post Offices Overseas 3.     Postal Bulletin, Conditions Applied to Mail Addressed to Military Post Offices Overseas 4.     T-7, Conditions Applied to Mail Addressed to Military Post Offices Overseas 2-71. Scales used at postal finance window   should be checked for accuracy at what minimum frequency? 1.     Daily 2.     Weekly 3. Monthly 4.     Quarterly 2-72. Navy post offices should have calculators that have the ability to print tapes? 1. True 2.     False