![The image displays two historical scientific demonstration instruments inside a glass display case, situated within the museum section of the First Primary School "St. St. Cyril and Methodius" in Shumen, Bulgaria. The instruments are positioned on a dark green felt surface.
On the left, a "Telegraph with Paper Tape (Demonstration Device)" is presented, consisting of numerous brass mechanical components, including gears, rollers, and a stylus mechanism, all mounted on a dark brown rectangular wooden base. An orange label in front identifies it in Bulgarian.
To its right, an "Anchor Mechanism (Demonstration Device)" is visible, also mounted on a similar dark brown rectangular wooden base. This device features a large brass spoked gear, a smaller gear, and an anchor-shaped escapement mechanism. A small metal plaque on its base is inscribed with "P. DUBOSQ - ING. BREVETE, PARIS-ELECTR." An orange label in front provides its Bulgarian identification.
In the foreground, a partially obscured red sign reads "Demonstration Devices in Chemistry and Physics, studied in the period [18]30 year." Reflections on the glass display case partially obscure a striped object and a document labeled "ИНВЕНТАР" (Inventory) positioned behind the anchor mechanism. A light-colored wooden frame is visible in the upper left background. No individuals are depicted.](https://firebasestorage.googleapis.com/v0/b/patr-3a75e.appspot.com/o/uploads%2Fimage_picker_e80eded3-a1aa-4067-9.jpg?alt=media)
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The image displays two historical scientific demonstration instruments inside a glass display case, situated within the museum section of the First Primary School "St. St. Cyril and Methodius" in Shumen, Bulgaria. The instruments are positioned on a dark green felt surface. On the left, a "Telegraph with Paper Tape (Demonstration Device)" is presented, consisting of numerous brass mechanical components, including gears, rollers, and a stylus mechanism, all mounted on a dark brown rectangular wooden base. An orange label in front identifies it in Bulgarian. To its right, an "Anchor Mechanism (Demonstration Device)" is visible, also mounted on a similar dark brown rectangular wooden base. This device features a large brass spoked gear, a smaller gear, and an anchor-shaped escapement mechanism. A small metal plaque on its base is inscribed with "P. DUBOSQ - ING. BREVETE, PARIS-ELECTR." An orange label in front provides its Bulgarian identification. In the foreground, a partially obscured red sign reads "Demonstration Devices in Chemistry and Physics, studied in the period [18]30 year." Reflections on the glass display case partially obscure a striped object and a document labeled "ИНВЕНТАР" (Inventory) positioned behind the anchor mechanism. A light-colored wooden frame is visible in the upper left background. No individuals are depicted.
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