Hi.
Inscription near the bottom of silver glass: "Начальн. Рангк. поста А.С.Шнырову"
In a full size: "Начальнику Рангкульского поста А.С.Шнырову"
A specially made for memory. For participants of construction of the first fortress of the Russian Empire on Pamir in Highland-Badakhshan area.
This silver glass is made for the chief of the Rangkulsky post (like check point) of Russian Border Guards, Cossack sotnik (like senturion) A. S. Shnyrov.
There is nothing unusual, that this glass is made at Khlebnikov's factory. Khlebnikov punch looks correct.
But I have seen one mistake: one of colleagues on a glass - V. A. Zaytsev. Actually he is V. N. Zaytsev (Vasily Nikolaevich)
http://www.a-e-snesarev.ru/uzryutova.html
http://a-e-snesarev.ru/novosti.html (25.05.2015 N.B.)