[Retired Guy]

We'd like to have a look at them, or maybe I should say, some of us would like a look.

(I'll take a look.)

 

[Retired Guy]

My first thought when I looked at them was older Harley Davidson bags, maybe off a Softail.

I think someone adapted them to another bike and added those aluminum plates on them.

 

[Retired Guy]

I did a little searching and I found 3 sets of saddle bags somewhat similar to yours. They all had the metal plates attached to them. From what I read they came from the 50's and were custom made for the Harley Panhead and Knucklehead motorcycles as well as Indians.
One of the three I found were claimed to be off a 1947 Harley Flathead motorcycle. Apparently the mounting brackets for these type of saddle bags can still be purchased through J&P Cycles (from what I read concerning one of the three sets).
I did not find a set that exactly matches what you have, and yours may be from the 60's.

 

[Retired Guy]

There's no way I could place a monetary value on your saddle bags. If I were you, I'd look for similar bags that are for sale. Read what condition they're in, how much they're asking, then compare them to your own bags.
Good luck.