SIX Large Cotter Pins - 3 inch x 5/16 inch - Never Used

Description

You get all 6 for your one purchase price.  These came from my dad's workshop.
They were never used, but they have been lying around in there since as early as the late 1940s when he started work at a company that made diesel locomotives.
I see a little rust, but these have not been cleaned up at all.  It is superficial and just what you would expect to see on these things, being as old as they probably are
.  Please see photos for condition and length.  I see no markings on these anywhere.
I ship by USPS first class mail so please include your postal address at checkout.  You will receive a USPS tracking number.  Thanks for looking.