Burroughs Carburetor Tool ID Help Needed

[theamcguy]

I have a few Burroughs Carburetor Tools that I need to identify

BT-16

56126 Pump Rod Gauge need application

56127
56128

56130 Float Gauge need application

These tools are from the mid 1950s to early 60s TIA

 

[four.cycle]

photos?