Kodak used their own film formats, 620 spools can be used to re spool 120 film.
Others can be used with 35mm laid inside the appropriate papers.
This crude TLR uses the dreaded 620 film so more re-spooling is needed before it can be used. Over all condition is , shall we say, had a hard life, but everything works as it should.
The view finder is bright even if a little dusty, the shutter and lens seem OK so a film will go through it some time in the future.
Watch this space.