Here's a nice assortment of plain, uncacheted covers from 1967 bearing cancellations from U.S. Navy destroyers. All are complete envelopes as shown in the first example, above. The 10 different ships represented are:

* USS Joseph P. Kennedy Jr. (DD-850)
* USS Meredith (DD-890) - includes a brown insert card with two additional cancellations
* USS Noa (DD-841)
* USS Power (DD-839)
* USS Pritchett (DD-561)
* USS Renshaw (DD-499)
* USS Robert L. Wilson (DD-447)
* USS Rupertus (DD-851)
* USS Steinaker (DD-863)
* USS Walker (DD-517)

Postmarked: HC - Various dates, all 1967

Cachet: None, although the Pritchett cover has an additional purple CDS in the lower left portion, the Noa has a rubber-stamped return address, and the Walker is stamped "POSTAGE PAID-PORT PAYE"

Condition: Generally clean and neatly label addressed. The Rupertus cover is slightly wrinkled and the Meredith cover was slit open along the top edge resulting in a long tear ending just above the cancellation (see scan, above).