One NORS transmission rear oil seal, National part number 10814 S, OEM number 3105459 (Victor #49612). This seal has been stored in my dry barn for over 20 years and was made in the late 60's and it has no rust or corrosion. It is a heavy duty well constructed seal with a rubber sealing element and a felt dust seal. It is for a shaft diameter of 1½", the OD is 2.445" and it is ½" thick. It is not for any AMC cars with automatic transmissions.
My books shows it fits the following cars with standard and/or overdrive transmissions:
1941-1942 Nash Series 40, Standard Transmission
1946-1956 Nash Ambassador & Statesman with Overdrive
1955-1956 Hudson Wasp, Hudson Hornet & Wasp with Overdrive
1957 Rambler 8
1958-1961 Rambler Rebel, Classic 8
1962 Rambler Classic 6, H.D
Tell me what you have and I will tell you if it fits.

I ship this item via USPS 1st Class Mail to any location that has a US zip code, this includes Alaska, Hawaii, Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands and also any APO or FPO address. Priority Mail has full US free tracking and you will receive this tracking number, you can then track your order if needed. If USPS shows your package is not delivered in a reasonable time, you will receive either a full refund or I will immediately ship you an identical replacement part if available. I also ship anywhere in the World via the US Postal Service except India. I only ship to India via FedEx due to the extreme problems I have incurred using USPS.

The cut off date for Monday through Saturday shipping is 9:30 AM, Eastern Time. I personally operate by myself 7 days a week, 52 weeks a year and ship 6 days a week. Since USPS ships and moves product 7 days a week, the majority of domestic customers will receive their order via 1st Class Mail in 4-5 days and via Priority Mail in 3-4 days, rarely 5-10 days after PayPal payment, no matter what day it was paid for.

I have been selling new automatic transmission parts exclusively for vintage cars, 1946 to the mid 60's for over 45 years now, starting in 1977.  During this time I have accumulated over 20 tons of misc. mechanical car parts from the early 30's to the 70's. I am now starting to offer these parts for sale.