Picked up a nice minty Wing Gull that is definitely pre Head Ski.  Underneath the arrow rest, the following numbers are stamped. "37" ...And perpendicular to that number is "66224". The bow measures 37 # ...That makes sense....The bow limbs do not have grooves for the string so when strung, it is pretty much a semirecurve in that the strings do not lay on the limbs. It is also longer than my 64" Head Ski Gull....So the 66 could be length or possibly the year of manufacture. Any idea about "66224" number by any Wing experts?