www.925-1000.com

Would have to be 1930's or later after Union Pacific Railroad's Old Timers Club came into existence. Pin for Chairman/Chairwoman (or chairperson) of Ladies' Auxiliary (LAUP) to the club. We seem to have a few possible firms for which there is no mark to go with Trev's entries. Encircled, intertwined letters of H-in-W and possible A (for "and" ?). TIA

A long circuitous search results in Whitehead & Hoag Company Newark NJ using this mark. They produced 20 year pins for this organization using standard marks on non-precious metal. This particular mark has been used in conjunction with a Sterling word mark, and here with the 10k Gold mark. Company absorbed/closed/dismantled 1959 (name used to c.1965).

Entry for 1913 new factory firmly placing W&H in the silver and gold business: viewtopic.php?f=38&t=36151&p=162039&hil ... ag#p162039

A search of UPRR on-line document (2014) covering history of employee clubs and predecessors indicates ladies' auxilliaries began forming in the 1920's along with the main clubs (contradicting a 1930 date elsewhere). [Officer titles follow the form of President, Vice-President, etc. rather than Chair.] Consideration of dating this W&H mark format might be moved earlier until additional information is found.

Whitehead & Hoag Co was founded in Newark, New Jersey by Benjamin Stainsby Whitehead and Chester Robinson Hoag Sr and incorporated there in 1892.

Site showing paper item (price list sterling, 10K & 14K sports balls) mentioning silver and gold enameled pieces (back page): https://newarksattic.blog/2015/08/26/th ... 1892-1959/

Not dated, no maker mark shown. List of agency locations.