The American Soda Machine Archive Manuals, history & restoration

Vendo identification guide

Read the tag.
Date the machine.

Vendo used more than one serial-number system. Start with the model number, then use the matching date method.

Decode a Vendo serial
Original Vendo identification plate showing the model and serial-number fields
Original Vendo plate · ColaMachines archive

The short answer

Do not decode the serial until you know the model.

1Find the plate

Look for a riveted metal tag on the cabinet, door liner, or refrigeration area.

2Copy both fields

Record the complete Model No. and Serial No. exactly as stamped.

3Choose the method

Use a date-coded serial when it matches that format. Otherwise use the factory model range.

Serial 21014601

21014601

1952OctoberUnit sequence

Manufactured

October 1952

14601 identifies the individual machine. It is not a day.

When the serial is only a sequence

Use the factory range

Example · Vendo V-81
19551001–11779
195611780–21213
195721214–33162
195833163–37737

Example: a V-81 carrying serial 25000 falls within the factory’s 1957 range. These numbers cannot be applied to a V-39, V-23, V-144, or another model—the ranges are model-specific.

Vendo factory serial-number chart with model-specific production ranges
Vendo serial numbers of Coca-Cola coolers · factory reference dated March 6, 1971

Primary reference

The chart behind the answer.

This surviving Vendo sheet lists annual serial ranges for several cooler models from 1946 through 1959. It is more reliable than applying one internet formula to every machine.

  • Confirm the exact model first.
  • Keep letters, prefixes, and leading zeroes.
  • Use the range only for the matching model.
  • Treat replacement or missing tags cautiously.
Browse Vendo references

What the tag can tell you

Year and month—sometimes.

A correct plate can help establish the model, electrical specification, refrigeration-unit information, and an approximate production date.

It does not automatically prove the machine’s original paint, Coca-Cola configuration, exact day of manufacture, or whether major components were replaced later.