Expertise
Methods for determining authenticity, analysis of marks and signatures. Expert and restorer advice.
Articles (95)
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A New Level of Forgeries: How to Identify Dangerous Copies of 18th-Century Coins
In the world of numismatics, forgeries and copies of coins have emerged that are a level above primitive variants. These more dangerous specimens can be encountered by collectors both online and at club trading rows or in antique shops.
ExpertiseCollector's Guide
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Patina on Coins: A Collector's Guide
Many new and even experienced collectors wonder what to look for when choosing a coin. One of the most common and complex questions is the evaluation of patina. Is it worth acquiring a coin with patina, how does it affect its value, and what potential pitfalls might be associated with it?
Collector's GuideExpertise
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Coins in Slabs: Why Grading is More Important Than Packaging
When discussing the storage and valuation of collectible coins, the topic of slabs—special plastic containers—often comes up. However, it is important to understand that the key process is not the act of placing the coin in the packaging itself, but the grading that precedes it.
Collector's GuideExpertise
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Varieties of the 1924 Ruble: From 'Spike' to 'Square Windows'
The 1924 silver ruble has a design characteristic of its time. The obverse of the coin depicts the figures of a worker and a collective farmer, symbolizing the union of the proletariat and the peasantry. In the background, fields, factories, and a rising sun are visible, reflecting the ideology of the new state.
ExpertiseCollector's Guide
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Authenticating Counterfeit Thalers: How to Distinguish a Copy from an Original
There is a misconception that primarily domestic coins are counterfeited. In reality, absolutely everything in demand by collectors is subject to forgery, regardless of its country of origin.
ExpertiseCollector's Guide
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Gold 5 Rubles: How to Spot a Near-Perfect Counterfeit
Three types of counterfeit 5-ruble gold coins, made in three different workshops, are presented for analysis. Three genuine coins are also used for comparison. One of the counterfeits is of very high quality, making it difficult to identify, yet it cannot be called perfect.
ExpertiseCollector's Guide
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A New Level of Forgery: How to Identify Dangerous Copies of 18th-Century Coins
Simple and primitive copies of ancient coins are being replaced by more dangerous forgeries. These specimens are made at a high level and can be found both online and in the trading stalls of clubs and antique shops.
ExpertiseCollector's Guide
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The Art of Coin Photography: A Dealer's Guide
After the coins are sorted and prepared, one of the most crucial stages in a numismatic dealer's work begins: photography. This is an integral part of the business, on which the success of a sale directly depends. A photograph serves a dual function: on one hand, it must evoke a potential buyer's desire to purchase the coin immediately.
Collector's GuideExpertise
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Gold Coins of Nicholas II: How to Avoid Buying a Sophisticated Counterfeit
For collectors of gold coins from the era of Nicholas II, one of the most serious problems is the risk of acquiring sophisticated counterfeits. This is a challenging task, as it involves not crude copies, but skillfully altered genuine coins that require careful examination and specialized knowledge for their detection.
ExpertiseCollector's Guide
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A Collector's Puzzle: Originals or Skillful Fakes?
A controversial situation arose on an online marketplace concerning several lots. After public comments pointed out signs of forgery, the sellers, lacking counterarguments, blacklisted the commenter and relisted the items. This allowed them to eliminate critical comments and hide information from potential buyers.
ExpertiseCollector's Guide
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Antique Appraisal: Why You Shouldn't Trust Neural Networks
Among recent acquisitions, one antique brooch stands out. Its uniqueness lies in the fact that a rather rare coin is set into the frame. This makes the item particularly valuable for collectors.
ExpertiseCollector's Guide
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A Guide to Selling Antiques: From Appraisal to a Successful Deal
Selling antiques attracts different categories of people. They can be conditionally divided into three main groups, each pursuing its own goals in this market.
Collector's GuideExpertise
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How to Identify a Counterfeit 1899 10-Ruble Gold Coin
Recently, the numismatic market has seen an increase in the number of copies and forgeries that dishonest sellers pass off as originals. Counterfeits of the 1901 ten-ruble coin are particularly common, so special vigilance should be exercised when handling it.
ExpertiseCollector's Guide
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How to Distinguish Platinum from Silver: Two Simple Methods
When working with contacts from relays and other electronic components, you might need to distinguish platinum from silver. Visually, these two metals are very similar, especially in the form of small contacts. Both have a white color and a characteristic shine.
ExpertiseCollector's Guide
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Wie man Tafelsilber anhand des Stempels von Neusilber unterscheidet
Viele Menschen können aus Unerfahrenheit Tafelsilber nicht von Neusilber unterscheiden. Oft werden Silbergegenstände fälschlicherweise in Antiquitätenläden oder auf Flohmärkten abgegeben oder über Anzeigen verkauft, da sie für eine weniger wertvolle Legierung gehalten werden.
ExpertiseCollector's Guide
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How to Quickly Check a Silver Ruble: Two Key Signs
There is a simple method for the initial authentication of silver rubles. This method is especially well-suited for certain types of coins that are commonly found among collectors.
ExpertiseCollector's Guide
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Collector's GuideExpertise
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Restoration of Rare Documents: From Cleaning to Recovery
For 11 years, the Regional Center for Conservation and Preservation of Documents has been preserving library collections. The main focus is on documents of special value. In addition, the center actively consults with the republic's collection custodians and participates in various projects, such as the regional 'Digital Culture' project.
History of ThingsExpertise
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How to Determine Gold Purity at Home: The Hydrostatic Weighing Method
There is a simple method that allows you not only to verify the authenticity of gold but also to determine its purity at home. This method is known as hydrostatic weighing. It doesn't require complex equipment—all you need are accurate scales, a glass of water, a thread, and a piece of paper for notes.
ExpertiseCollector's Guide
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Restoration of the 1853 'Russian Alphabet': From Ruins to a Readable State
Alphabet books are valuable and rare publications that occupy a special niche in the world of antiquarian books. Their rarity is due to the fact that they were intended for children and were actively used, which is why most copies survive to this day in very poor condition.
History of ThingsExpertise
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