Andrew Nethercott Antiques has dated this piece to the Georgian era.
Of writing slope form, the slope surface slotted with guide wires to write through to the writing plane below, which is ratcheted forward (with rack and pinion) to the next available writing line by the brass wheel on the side, the plane is returned by holding in the front button releasing the pinion.

What or how the writing plane functioned I cannot be sure but evidence of (probably copying) ink gives a guide.
The slotted top devised as a hand rest to protect the copying plate from hand smudges etc.

This may have simply made a copy or a plate to make further copies.
Fine flame mahogany interior tooled leather exterior, the slope retaining its Royal arms through the later leathered surface.
Generally in sound condition noting some wear to the sliding guides.
12,1/2" or 320mm long, weight 2300 grams
Andrew Nethercott Antiques has dated this piece to the Georgian era.
Works of art, collectables, scientific and decorative antiques from the 17th - 20th century
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