No.1 Overseas Railway Construction Corps Pin certificate_of_authenticity end with fastener button as

end with fastener button as originally worn

silver service bar on the original ribbon

9 Years Long Service Medal

with 1 Clasp - RUSSIA

No.1 Overseas Railway Construction Corps Pin certificate_of_authenticity end with fastener button asNo. 1 Overseas Railway Construction Corps Pin Sterling silver and enamels, maker marked "SSR", marked "SS" and "STERLING SILVER" on the reverse, 27. 3 mm x 31. 3 mm, horizontal pinback, intact enamels, extremely fine. Footnote: In May 1916, the Overseas Railway Construction Corps and four independent companies (the 13th Light Railway Operating Company, the 58th Broad Gauge Operating Company, the 69th Wagon Erecting Company and the 85th Engine Crew