Cachet Maker Portsmouth Naval Shipyard Improvement Development Association

Cachets should be listed in chronological order based on earliest known usage. Use the postmark date or best guess. This applies to add-on cachets as well.

Thumbnail Link To Cachet Close-Up Image	Thumbnail Link To Full Cover Front Image	Thumbnail Link To Postmark or Back Image	Primary Date Postmark Type Killer Bar Text Ship --------- Category

 

			1933-10-19 Locy Type 6 "Navy Yard Station" Portsmouth NH
			Ship Launching - USS Cachalot SS-170

Cachet by Charles W. Clark

 

			1933-10-19 Locy Type 6g-1 Portsmouth NH Navy Yard
			Ship Launching - USS Cachalot SS-170

Notes: Cachet Makers: Portsmouth Navy Yard Improvement Association and Charles W. Clark

 

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