Mill marks question

[K_Yan]

I noticed that while one of my pre-1960s pans have crisp mill marks the other is completely smooth and mill mark free. Does this mean that the smoother one had been sanded down at one point?

Thanks in advance

 

[Doug D.]

The marks are actually from polish grinding using a spinning abrasive stone head (as opposed to milling with a rotary cutter). Some makers' processes resulted in glassy smooth finishes, but others are seen with the spiral marks remaining. Over time and usage, such marks are often worn to the point they are no longer evident. Variations in the residual marks on new pans from the same maker may have been due to how worn the polishing head had become or to the particular grinder operator. Alternately, Lodge at one point offer both polished and "mirror polished" grades.

 

[K_Yan]

Thank you!
So If I'm purchasing two wagner identical pans, one with mill marks and one without - which one would be the wiser choice?

 

[Doug D.]

If actually identical, i.e. from the same period of production, you would probably want to look at other factors before the polishing marks. Is either pan warped, cracked or chipped, or is there any evidence of rust or sulfur pitting? If neither has any of that type of damage or defect, then the one with the marks would indicate the least amount of use (or abuse).

 

[K_Yan]

that you for the wonderful in-depth information. There is so much to learn!