ThanksI'm not sure of the model number, but it's mid-'30s Atlas-made.
The feed return spring and housing are missing. I believe this style fits (not mine): https://www.ebay.com/itm/315248424032 .
The pinion shaft is pushed out to the left, so there is a pinion shaft collar loose or missing on the right. I don't see a feed handle rod either. Right side photo?
I don't believe that model had the chrome spire.