not bad looking at all. take your time on the restoration. as Richard said , nice to see the deferred payment parts still there.
lower back doors seem to always be missing on these. my revamp is missing it's lower. be cautious on buying one ,most are ill fitting reproductions = shrinkage in it's casting. seems repros are around $100.00 on e-ban , originals ,if you can find them , around $150.00. working on making a oak version for mine, with a new lock. I love the earlier upper door like you have , but since no one ever sees it, it's artistic beauty is lost.
few more photos on the over all mechanics (each side) would be nice. like you ,I'm more knowledgeable with newer Mills ,not early Jennings.
have to compare your photos with my revamp. mine might still have a few "not needed" parts ,after it's revamp.
very nice , & the price was good for a "complete machine".
jeff H.