Local posting has a working but missing a few parts 12/0 for 90 dollars. From the pictures I believe it to be a 10/0 due to no scene on the non handle side and only have 5 single post. The reel is missing 3 post. Scott's no longer carry the post how hard are they to find and how much do they usually cost.
https://www.mysticparts.com/PennParts/Penn116A.aspx (https://www.mysticparts.com/PennParts/Penn116A.aspx)
If it is a 10/0 the posts are the same size and length as a 9/0. They are available .
"Edited as per Moderators to correct Scott's Bait & Tackle over to their new store name Mystic Reel Parts / www.mysticparts.com"
It used to be that a 10/0 Senator had the diameter of a 12/0 but the width of a 9/0. Don't know about the newer models. I think the embossed scenes disappeared in the 1960's. There's plenty of historians here who would know.
-steve