1956
The R prefix to your serial number indicates that your Marlin model 336 rifle was produced between 1957-1958.
Browning.com has sn data under customer service.
Browning.com has sn data under customer service.
what is the model year
Since you did not provide the serial number, there is no way anyone can answer your question. The Blue Book of Gun Values has sn data that can assist you. You could also call Browning with the serial number and they will tell you.
The letters in the model number designate the year model, when compared to a model / year guide.
... for WHAT model and year Jeep?
This Year's Model was created in 1977.
It varies from year to year, make to make, model to model. Need to know what year, make and model you have.
your Johnson is a 1985 year model
1254 is the year and the model is sages