Vintage Cross Set of Silver-Plated Shell Pen Set w/Case, USA

Description

Never used but have sat for a long time so minor tarnish might be visible. Unsure what set number this is and unsure if these two pens actually go together as on has an imprinted shell pattern in the center and the other one does not. They are both the same length 5-1/4" and both write / roll as they should.
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