When was OF Mossberg and Sons Inc. model 152 made?

The model 152 was made from 1948-57, with the earliest rifles having a wooden fold down forearm, and later ones having a back plastic fold down. I have 3 of these cute little rifles- but they have all been claimed by my grandkids as their rifles. There is a modest collector interest in these, and some parts are available for them. The rear peep sight is frequently missing, and is pricy to replace. Not a target rifle, but Excellent plinker or lightweight small game hunting rifle. 1948-1957 1948-1957