This is Spectacular Russian Silver "88" Guilloche Enamel Gilded Letter Opener, the exquisite item that is a true piece of Russian silver artistry.  
The intricate details and expert craftsmanship speak to the high standards of silverwork that Russia is known for. The silver used in this piece is of exceptional quality and the design is both beautiful and functional. 
The region of origin, Russia, is known for producing some of the finest silver items in the world and this letter opener is no exception. The material used, silver, is a precious metal that has long been valued for its beauty and durability. The top of the item depicts Eagle statue (close up pictures ##4, 5. 6 - Russian Empire Emblem. And, the body of the letter opener is beautifully decorated with Guilloche Enamel.  And, of course, the gilded blade with flour decor.  Please review my very detailed pictures above.

Guilloche is a highly decorative technique used in metalwork, which combines mechanical engraving and translucent enamels to create surface embellishment.  Guilloche enamel can only be achieved with specialized machinery known as ornamental lathes.

This item belongs to the non-U.S. silver category and is truly perfect for collectors or anyone who appreciates the skill and artistry of silverwork. 

The Letter opener is 6-1/2" long.
Weight:  36.9 grams.

The marks are on the blade as follow: Russian Imperial Emblem (Two-Headed Eagle), followed by "Faberge" (in Russian letters) - famous Russian jeweler, followed by Russian Hallmark and "88" - Russian Silver Standard.  

Condition:  The letter opener is In EXCELLENT condition!
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Note to the buyer(s):  dear eBay members.  As a beginner, my sales on eBay are limited.  Therefore, I list items that were accumulated throughout the decades for relatively low prices for fast sell to earn good reputation and get as many positive feedbacks as possible.  By doing so I will be able to list more valuable items on eBay down on the road.  

I guarantee nice packaging and shipping on time with proper communication throughout the transaction.  

Thank you very much and good luck with bidding!