marbles knife

[sambam61]

Just came across a marbles knife marked 4C 25-25 SPORT on the sheath.It is marked with gladstone mich. on the blade. Can anybody help me out finding out the age of this knife ?

 

[Tony_A]

Bladeforums has a sub-forum devoted to knife identification.

http://www.bladeforums.com/forums/forumdisplay.php?f=691

Make sure to read the rules before posting and include proper pictures.