This Marlin manufactured butt plate white synthetic spacer is for the model 40 Coast to Coast semi-auto rimfire rifle. This spacer is in good condition having a small section missing at the top screw hole portion with some light wear present on the overall part.  (file photo)

Note: Marlin model 40 rimfire rifles with the following years of manufacture and serial numbers have been observed with this part:

 1971: 71474846