Antique 16-17th Century European Gun Powder Horn Flask For Wheel or Matchlock Gu

Antique, European gunpowder flask in a characteristic flattened form from the turn of the 16th and 17th centuries for a matchlock or wheel lock gun.
It consists of a curved pressed cow horn body with beveled edges and a wooden buttplate fitted with an oval iron plate secured with a brass domed pin. The brass upper plate is attached to the horn body by four iron pins and equipped with a tapered brass tubular pouring spout with an iron turn-off closure.
This early form of closure system is often found in 16th-century gunpowder flasks, which were later replaced by a spring-loaded pivoting mechanism and nozzle cap.
Musketeers used this form of powder flask throughout Europe from the late 16th century to the early 17th century.
For related flask, please see the links below:
https://www.freemansauction.com/auction/lot/lot-311-17th-century-style-powder-horn/?lot=426525&so=0&st=&sto=0&au=4508&ef=&et=&ic=False&sd=1&pp=96&pn=4&g=1
The buyer will be provided with a certificate of authenticity and copies of the pages from mentioned references.
CONDITION: Perfectly preserved original untouched condition, showing age use. Horn, metal mounting, and iron pins with old patina. There are some cracks on the edges of the horn body.
DIMENSIONS:
Approximate overall length: 14.5 cm (5.71 inches).
Width at the base: 8.5 cm (3.35 inches).
Depth: 3.5 cm (1.38 inches).