well hello tonight

Sorry for having been away so long but have been under the weather

I had a fellow bring me a couple of handsaws to sharpen the other day and I finally felt able to get at them yesterday.

I have seen alot of handsaws in my day but one of these is particularly interesting--it is a Disston and in the embossed inscription it has a notation saying that it is "for cutting steel"--(this inscription is below the regular disston insignia)

This saw appears to me to be a regular hand saw--10pt-- so it certainly is not for cutting steel

Anyone have any ideas?