Dick - When I was 15 years old (5 years before I bought my 1958 TR3A), I worked during that summer between grade 10 and grade 11 at "Mico-Meter" where they made these parking meters and the earlier models. My job was to hang the white-metal castings onto hooks and manually lower the rack of parts into an acid bath. Then I lifted it out and rinced them off, then into a caustic solution followed by a final rince. Or maybe the caustic was first. I remember it was heated and the baths were set up next to an open window so the smell and heat would drift outside - during that hot summer of 1953. Then I used a grinder to remove the burrs from the castings and hook them up, ready for the paintshop.
When things were quiet, they would put me onto a punch press to punch out the sheetmetal parts used inside. I worked there for two months at $23.00 per week for 35 hours. But if they asked me to work on Saturdays, I got $31.00 per week.
The money I saved helped pay towards my TR3A five years later.
BTW, I found out that the coin type Mico-Meters which were used all over Montreal would accept the 20 centime French coin - the same size and weight as a quarter. But 20 centimes was only worth about 4 cents. So I saved money that way as well towards the the purchase of my TR.