Ok i just want to know how old this sears spyder bike is ?

my wife bought this bike at a garage sale it appears to be almost perfect except for 2 stickers . one by the front fork post looks like a small crown and the second is on the seat post its a checkerboard . its a sears spyder 20" boys 3 speed twist shift and is gold in color with a cheetah skin seat and dust type pad that goes over main seat . the grips say 3x3x3 on them and the petals are old white and black rubber type . the rear reflector is round metal back about 3or 4 inches round .. ok the vin number confuses us it says on the bottom of the crank 507.47### we were thinking it is a 1965 does anyone have info on this thing . is it as rare as i think it could be ?? it also don't look like anything newer than 1967 this is real old skool ! it is now part of our living room as a piece of history.. Any real info would be appreciated thanks a bunch !