In late May 2023, we found an old Universal #2 Food Chopper at an estate sale for a great deal, and picked it up. Though the grinder is old, and advertised as a "meat and food grinder", it was very unlikely it has ever been used for meat, and maybe not used at all. There was a small bit of rust but overall it seemed in good shape.

[Image of chopper as purchased (I may have actually lost this...)]

Transcription of manual is below.
(Text and images copyright Universal; transcribed for informational purposes)

UNIVERSAL FOOD CHOPPER

No.1 Regular No.2 Large No.3 Commercial
With Self-Sharpening Cutters

Depiction of how to assemble the Universal Food Chopper.

Assemble as shown making certain that shoulder on end of feed screw enters slot in cutter. Screw the wing nut fairly tight for chopping meat. For other foods just tight enough to give slight resistance. Once assembled, clamp the chopper to any table or counter making sure enough clearance is left for a plate or bowl to catch chopped foods.

Cutters for No.1, No.2 Choppers
Examples of the attachments for the Universal Food Chopper.

Use the Right Cutter for the Right Job — On All Universal Choppers

COARSE
Use the Coars Cutter for chopping all kinds of vegetables, fresh or dried fruits, salt port, suet, cooked meat, and all other articles which one desires chopped into rather large pieces.
MEDIUM
Use the Medium Cutter for chopping all kinds of cooked meat, vegetables, and all other articles of food which are desired rather fine or medium. For cutting meat, see that the wing nut is screwed pretty tight.
FINE
Use the Fine Cutter for pulverizing dry bread, almonds, Spanish nuts, mint, and also meat or vegetables if they are desired very fine.