These are good taps.
Just to add perspective. I sell a similar configuration (only the tap is a plastic Alumasc) in the shop for $65.00.
This looks like a S/S grundy style tap. Parts are easy to get and they are worth a lot more. This tap new, in this configuration would retail here in OZ for approx $110.00.
Wish I had a trailer load of them.
Regards
Dave