This is a very interesting & I think Rare miniature pocket telescope made by the London optical instrument maker Harris & Co, Holborn, London who worked at this address from 1816 to the mid 1830's best I can find out? 

It seems to work just fine through the dirt and gime but it does need a sympathetic clean up but its exactly how its come from an old estate, never offered before and just listed now to sell, its a wonderful old instrument and the body has no cracks or repairs which is unusual.

Not really what we sell on ebay but its a very original instrument that now needs a seriously good clean up, it is however exactly as we have bought it and its wonderful quality and all original.

Size: approx 48 mm across the main body and only 35 mm tall when closed up.

Any questions please ask.