I'm pulling back my DPOs to the home state of Washington, here's what I have for Iowa.   5 LDPOs, and 1 FDPO.  The Sioux City Air Base Post Office is not listed in the Helbock, and I find no such post office in the USPS listings, so it may also be a DPO by now.  The covers are in pretty good condition, no bends or tears, the Edna flap is tucked in and stuck to the stiffer card, and the Augusta flap is sealed, I see no enclosure, the others are unsealed.