Old Oregon saw chain loop

[cuttinscott]

here is a odd loop of .354" of sawchain? Oregon 45c series has anyone ever used this?? Just curious I believe some 70's Macs used it not sure
Scott


edit: pitch .354" gague .050" chipper tooth

 

[gatkeper1]

Never used it but I do have a a spool of orig Mac 354 chain