1929 SC SBT Barrel Flat Codes Help Needed

[Jim P.]

Thank you, all, for your replies and help. The code that's most puzzling is the small strikes that look like HT over A to the left of the Acme steel A.

Maybe it's H7? Any guesses or ideas?

Thanks!

[Jim P.]

P.S. heading north to the woods for a few days - no internet or phone and will check updates to say thanks again by the end of the week....

[John Davis]

HTA is a common marking on Parkers. Not explicitly known but the consensus seems to be Heat Treated something or other that starts with an A. Edgar can chime in for a more detailed explanation on that one.

[Dean Romig]

Originally Posted by Jim Pasman

Thank you, all, for your replies and help. The code that's most puzzling is the small strikes that look like HT over A to the left of the Acme steel A.

Maybe it's H7? Any guesses or ideas?

Thanks!

The most accepted meaning of HT/A is High Tensile Alloy.





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[John Davis]

Originally Posted by Dean Romig

The most accepted meaning of HT/A is High Tensile Alloy.

Or what Dean said.

[Dean Romig]

Originally Posted by John Davis

Or what Dean said.

And several years ago Dave Suponski suggested Heat Treated and Annealed…





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