This is what I found on this fish:
"This pike was caught on the 6th of March 2006 by Dutch fisherman Ewout Blom in a pretty big lake in the south of Holland, I know the name of the lake from where quite a number of 40 plus pikes were caught and released but promised not to mention the name to avoid too heavy fishing pressure.
"This pike had a length of 127 cm and a weight of 19,5 kilo and was caught trolling with a Rapala Super Shad Rap in perch colour and I have about 10 original digital pictures of this fish"
For the metric-impaired (such as yours truly), 127cm and 19.4 kilos works out to right around 50 inches, and just barely shy of 43 pounds...
So, not 50 pounds, NOT Rainy Lake...