'53 full press 235

Rear main seal is leaking pretty bad,
before I change out the rope/wick seal that's in it now, I thought I'd ask...

Anyone recognize this neoprene/rubber seal ? (see attachment)
I can't seem to find anything online anywhere, I don't know anything about it,
it's what was in my engine when we torn it down for the rebuild.
The only identifying marks are...SCI 8 500855, and other half is...SCI 21 500855.

Thanks, Jim
Attachments
IMG_7941a.jpg (95.83 KB, 293 downloads)