Canadian Possibly Booby Trap Switches ID Required

[millsbomber]

Hi Every one had these switches a while now and finally trying to find any info about them, any help would be great, looking to sell if any one can twist my arm,,,,, All the best and stay safe in these difficult days,,,,, Dave






Just found this also

 

[switch]

Interesting! Thanks Millsbomber. I have seen the moulded plastic pressure switch before, but never the Canadian connection. Looking forwards to some more information too.
Cheers
Switch