I too thought it was an Ideal, but the ones I've seen have their name pressed into the cover. I also think their covers are one-piece and lift off vs this one that is split in halves.
That said, Ideal is still supported. https://www.schaefermarine.com/
I'd guess that if you emailed your pics to the following email address, they would know ---- perhaps even have parts for you (they state that 99% of the parts for Ideal Windlasses produced since WWII are still available - impressive!).
(Ideal AT ShaeferMarine DOT com)