2P Knife Switch, 32A 2 Pole Double Throw Disconnect Knife Switch, Firm Connection Electrical Knife Switch for Industrial Enterprises, Household Appliances, Power Systems : Amazon.co.uk: DIY & Tools
1930s Vintage Double Pole Double Throw DPDT Aerial Knife Switch 9 cm x – Mullard Antiques and Collectibles
Eisco Labs Electrical Knife Switch - Double Pole & Double Throw | Plastic Base | Brass Poles and Knives | Ideal for Student Experiments | DPDT Electric Connection Testing : Amazon.co.uk: Business, Industry & Science
Knife Switch Double Pole, Single Throw - Scholars Labs