Encyclopedia of collectible object types
What is this object, who made it, and how do we know?
A structured, evidence-first reference for coins, paper money, stamps, horology and antiques worldwide. Every record names its sources and states how certain it is. Nothing here is for sale.
- Catalogue records
- 113
- Historical entities
- 49
- Sources in bibliography
- 16
- Audited scopes
- 12
These figures are counted from the database. This is an early-stage catalogue: the framework is complete, the content is deliberately small and fully sourced.
Collecting disciplines
Numismatics
Coins, tokens, medals and jetons of all periods and issuing authorities.
65 records
Paper Money
Banknotes, treasury notes, emergency issues, occupation and colonial paper.
20 records
Philately
Postage and revenue stamps, postal stationery and postal history.
24 records
Horology
Watches, clocks, chronometers and the mechanisms that drive them.
4 records
Other Collectibles
Cameras, fountain pens, instruments, records, books and further documented fields.
0 records
Recently catalogued

pocket watches
American Waltham Watch Company — Model 1857 Pocket Watch Movement
1857–1880s
Key-wound, key-set 18-size full plate pocket watch movement, the first Waltham model produced in quantity with interchangeable parts.
modern coins
Argentine silver peso (Patacon)
Late 19th century
Crown-sized silver peso of the Argentine Republic, popularly known as the Patacon.
banknotes
Assignat
1789-1796
Paper money issued during the French Revolution, originally backed by confiscated land.
ancient coins
Athenian Owl Tetradrachm
c. 5th–4th century BC
Silver tetradrachm of classical Athens showing the helmeted head of Athena and, on the reverse, an owl with olive sprig and the legend AΘE.
modern coins
Austrian 20 kreuzer
18th to 19th century
A silver denomination of the Austrian monetary system, issued at numerous mints across the Habsburg lands.

modern coins
Austro-Hungarian Empire — 1 Corona — Silver
1892–1916
Silver one-corona coin of the Austro-Hungarian crown currency, issued in parallel Austrian and Hungarian types.
Types, not items
A record describes an issue, model or series as it historically existed — never an individual example offered for sale.
Historical issuers
Objects stay with the authority that issued them. An Austro-Hungarian coin is filed under the empire, not under a modern successor state.
Gaps are published
Missing denominations, unverified catalogue numbers and conflicting references are listed on the record itself.