2 pressure-cooker gaskets (Hackney E8)

Two neoprene gaskets for a Mirro-Matic pressure cooker, in original paper envelope.
 Fits these 4-quart models:
- M-0294
- M-0294 dash 35, 37, 39, and 50
- and M-0494 dash 35 and 36.
The gaskets themselves are model S-9890.
They are a little grimy from their long stay in a box in the cellar, but otherwise appear to have been protected by the cool and the dark. They are soft and flexible and show no cracking.