Try Googleing GPC or Numrich Arms, they carry a lot of used parts for odd and/or discontinued rifles. You can buy on line or talk to somebody live on the phone. I've had good luck with them in the past.
Your Winchester Model 55 was manufactured in December of 1926.
your model 55 Winchester was made in 1925.
your Winchester model 55 was produced in 1926.
The Winchester 55 .22 caliber was not serialized.
Your winchester model 55 was assigned a serial number in the model 1894 production range.This was not that uncommon.The year of production of your model 55 was 1928.
your model 55 Winchester was made in 1928,so that puts its age at 82yrs.old
your model 55 Winchester was one of the first 5 rifles made in 1928.
Your Winchester model 55 was made in the year 1927 with the serial number that you have provided.
1958-61
with the serial number that you have provided,your Winchester model 55 was made in the first year of production which was 1924.
That's a pretty rare rifle, try calling Numrich arms, AKA Gun Parts Corp, they have a lot of used, one of a kind items and parts.
www.armscollectors.com