Was originally a standard Dunlop JDF2 fuzz face but the previous owner has changed this to a classic Arbiter era fuzz face design with reproduction classic era PCB and components.
Germanium transistors are both AC128 PNP type It looks to have been done well.
Germanium transistor fuzzes are very subjective, down to personal taste (and can be very temp sensitive) but this sounds good to me.
Best sounding IMHO with the fuzz face Volume at 100% and Fuzz between 80% to 100%. The pedal cleans up nicely as the guitar volume is wound down.
This PNP fuzz is positive ground so internal battery use only and pedal has no external 9V connection.