A picture of the bow would certainly help but if the data is "written" as opposed to a decal or sticker, I believe that it is a mid to late 50's model. The data was usually written in black ink on the belly side of the bow just below the heal of the handle as it fades to limb.
Wing didn't produce many catalogs in the 50's that I can find, and only a couple of flyers and ads, so information during that time period is limited.
I have a handful fo these bows and paid $50 - $125 for them, but that was quite a while ago. There are a few Wing collectors out there and the price would depend on the bidding war resulting over the bow purchase.
Al (Als Decals)