Vintage Bakerlite Plastic Hafted Penknife. The handle is engraved with Clerkenwell Screws, Holborn. There is a single steel blade. The piece dates to around 1930.
Condition:Good. The spring is worn, so the blade needs to be pulled in and out of the handle. Length of the knife open is 4.1 inches, and closed is 2.5 inches.