Need Help

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Hi from Nova Scotia,

I am trying to identify two slings. The first one pictured is 51" long, screw together button hooks on each end , leather laces on each end. One member here gave me a couple of places to start but I haven't been successful. I've attached a picture of the Button hoping someone might know 'who' may have used that design.

The second sling came off a 1915 Mk III. The swivels are what has me questioning if it is indeed a Lee Enfield. (last picture)

Thanks for any help you can provide. Very much appreciated.