Armoured Best Lock 1E7K4 Mortise Lock Core & Keys - eBay.com
New in box Best Lock 1E7K4 high security armored mortise lock core and keys
http://www.ebay.com/itm/New-in-box-Best-Lock-1E7K4-high-security-armored-mortise-lock-core-and-keys-/262050550657?hash=item3d036e1381
I just love all the beefed up Best Lock products I've seen thus far.
Also, the seller is top notch - I recently bought a gorgeous LG Padlock off him - around here he usually dressed in green and goes by Riyame
Kind regards,
Sean