Quote:
Originally Posted by R Bedell
I am NOT a fan of the R-290 (Propane) refrigerant. That opens a whole host of other problems and I am not sure one can do that type of conversion.
Yes, there are a number of R-12 alternatives that would work well and ready available if this system needed some work.
None the less, it would be a cool purchase.

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Did a little looking into this just now. Yes R12 is likely what was put in it from new.
also found this... seems they are kinda rare
Produced for barely a decade, roughly 1946-1956, few International Harvester refrigerators remain to satisfy collector demand. The original price tag of $220 to $400 is many times that in today's vintage collectible market. A few years ago International Harvester's present owner, CNH Industrial, negotiated with licensees to produce Irma Harding products.
Models
In 1950 there were six International Harvester home refrigerator models and a choice of ten door handle colors. Another model was added in 1951 (including the HA-74, HA-82, HA-83, HA-84, HA-92, UA-87, UA-95) and in 1952 came an eighth model, the G-93, and an eleventh door handle color. By 1954, a year before the plant was closed, the number of models dropped to seven and colored door handles were discontinued.