1693, Netherlands, Denventer. Countermarked Silver 28 Stuivers Coin. NGC VF-25!

Denomination: 28 Stuivers (Florin) 
Mint Year: 1685 (the host coin), 1693 (the countermark).
Mint Place: Deventer (the slab says Kampen, which is wrong!)
Reference: KM-81.1. (for the host coin), KM-4.1. (for this type with the countermark.).
Condition: Certified and graded by NGC as VF-25 (the host coin) / VF STANDARD (the countermark!)
Weight: ca. 16.33gm
Diameter: 37mm 
Material: Silver

Obverse: Crowned composite coat-of-arms of the City of Deventer. Date ([16]8-5) split by crown above. Countermark (bundle of seven arrows, which stand for the seven united provinces) across shield.
Legend: FLOR . ARG . C... (28) DAVENTRIAE

Reverse: Double-headed imperial eagle with cross-topped orb at chest. Titles of Emperor Ferdinand II around.
Legend: FERDINAND . II . D . G . ROM . IMP ...

The Republic of the Seven United Netherlands (Dutch Republic / Republic of the United Netherlands) was a republic in Europe existing from 1581 to 1795, preceding the Batavian Republic and ultimately the modern Kingdom of the Netherlands.

Deventer (Sallands: Daeventer) is a city and municipality in the Salland historical region of the province of Overijssel, Netherlands. 

Deventer is one of the oldest cities in the Netherlands. The place is mentioned in 9th-century sources from the Diocese of Utrecht. A charter from 877 AD mentions seven hooves in Daventre portu (the Deventer harbor). In 952 AD, Deventer is mentioned as a city in a gift certificate from King Otto I. After the place had acquired more and more rights and privileges over time, it received the municipal lands from Emperor Henry V in 1123. This is considered by historians to be the moment of Deventer obtaining the city rights by the inhabitants. The city has the oldest stone house, the oldest walking park and with the Athenaeum library also the oldest scientific library in the Netherlands.