These are a set of vintage Brown & Sharpe No.281 intermicrometers with two calibration rings, 1.0000 & 1.3999.
See the pictures for a general idea of the condition of these old tools.
The Mics are in good condition but the set is missing the two extension arms .
The Mics are not new, they are used. They look to be in good condition and are fully functional.
If you are collector of vintage machine tooling equipment, you might need to add these vintage Brown & Sharpe V-Blocks to your collection, or tool crib.